diff --git a/database-seeds/collections/charts-iidx.json b/database-seeds/collections/charts-iidx.json
index f671ccb7d..22139354b 100644
--- a/database-seeds/collections/charts-iidx.json
+++ b/database-seeds/collections/charts-iidx.json
@@ -236533,23 +236533,7 @@
 		"playtype": "SP",
 		"rgcID": null,
 		"songID": 480,
-		"tierlistInfo": {
-			"kt-EXHC": {
-				"individualDifference": false,
-				"text": "13.70",
-				"value": 13.7
-			},
-			"kt-HC": {
-				"individualDifference": true,
-				"text": "12A+",
-				"value": 13
-			},
-			"kt-NC": {
-				"individualDifference": true,
-				"text": "12B+",
-				"value": 12.7
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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 			"28-omni",
@@ -298135,23 +298119,7 @@
 		"playtype": "SP",
 		"rgcID": null,
 		"songID": 596,
-		"tierlistInfo": {
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-				"individualDifference": false,
-				"text": "13.70",
-				"value": 13.7
-			},
-			"kt-HC": {
-				"individualDifference": false,
-				"text": "12A+",
-				"value": 13
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-			"kt-NC": {
-				"individualDifference": false,
-				"text": "12A",
-				"value": 12.8
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
 			"28",
 			"28-omni",
@@ -323299,11 +323267,6 @@
 		"rgcID": null,
 		"songID": 643,
 		"tierlistInfo": {
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-				"text": "13.70",
-				"value": 13.7
-			},
 			"kt-HC": {
 				"individualDifference": false,
 				"text": "12S",
@@ -360651,13 +360614,7 @@
 		"playtype": "SP",
 		"rgcID": null,
 		"songID": 708,
-		"tierlistInfo": {
-			"kt-EXHC": {
-				"individualDifference": false,
-				"text": "13.70",
-				"value": 13.7
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
 			"27-omni",
 			"26-omni",
@@ -366149,23 +366106,7 @@
 		"playtype": "SP",
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 		"songID": 716,
-		"tierlistInfo": {
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-				"individualDifference": false,
-				"text": "13.70",
-				"value": 13.7
-			},
-			"kt-HC": {
-				"individualDifference": false,
-				"text": "12S",
-				"value": 13.1
-			},
-			"kt-NC": {
-				"individualDifference": true,
-				"text": "12A",
-				"value": 12.8
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
 			"27-omni",
 			"26-omni",
@@ -408872,11 +408813,6 @@
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 		"tierlistInfo": {
-			"kt-EXHC": {
-				"individualDifference": false,
-				"text": "13.70",
-				"value": 13.7
-			},
 			"kt-HC": {
 				"individualDifference": false,
 				"text": "12B",
@@ -408884,8 +408820,8 @@
 			},
 			"kt-NC": {
 				"individualDifference": false,
-				"text": "12C",
-				"value": 12.4
+				"text": "12B",
+				"value": 12.6
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 		"versions": [
@@ -413496,13 +413432,7 @@
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 		"songID": 801,
-		"tierlistInfo": {
-			"kt-EXHC": {
-				"individualDifference": false,
-				"text": "13.70",
-				"value": 13.7
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
 			"27-omni",
 			"26-omni",
@@ -420397,9 +420327,9 @@
 				"value": 13.1
 			},
 			"kt-NC": {
-				"individualDifference": true,
-				"text": "12B",
-				"value": 12.6
+				"individualDifference": false,
+				"text": "12C",
+				"value": 12.4
 			}
 		},
 		"versions": [
@@ -427486,11 +427416,6 @@
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-				"text": "13.70",
-				"value": 13.7
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 			"kt-HC": {
 				"individualDifference": false,
 				"text": "12A+",
@@ -433718,23 +433643,7 @@
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-		"tierlistInfo": {
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-				"individualDifference": false,
-				"text": "13.70",
-				"value": 13.7
-			},
-			"kt-HC": {
-				"individualDifference": false,
-				"text": "12C",
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-			},
-			"kt-NC": {
-				"individualDifference": false,
-				"text": "12C",
-				"value": 12.4
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
 			"27-omni",
 			"26-omni",
@@ -538688,13 +538597,7 @@
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 		"songID": 1019,
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-				"individualDifference": false,
-				"text": "13.70",
-				"value": 13.7
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
 			"29",
 			"inf"
@@ -572328,23 +572231,7 @@
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-		"tierlistInfo": {
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-				"text": "13.70",
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-			"kt-HC": {
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-				"text": "12B+",
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-			"kt-NC": {
-				"individualDifference": false,
-				"text": "12B",
-				"value": 12.6
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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 			"28-omni",
@@ -615431,23 +615318,7 @@
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-				"text": "13.70",
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-			"kt-HC": {
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-				"text": "12S",
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-			},
-			"kt-NC": {
-				"individualDifference": false,
-				"text": "12S",
-				"value": 13
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
 			"28",
 			"28-omni",
@@ -695405,9 +695276,9 @@
 				"value": 12.7
 			},
 			"kt-NC": {
-				"individualDifference": false,
-				"text": "12B",
-				"value": 12.6
+				"individualDifference": true,
+				"text": "12C",
+				"value": 12.4
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 		"versions": [
@@ -708140,8 +708011,8 @@
 			},
 			"kt-HC": {
 				"individualDifference": false,
-				"text": "12S+",
-				"value": 13.2
+				"text": "12S",
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 			"kt-NC": {
 				"individualDifference": false,
@@ -787914,11 +787785,6 @@
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-				"text": "13.70",
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 			"kt-HC": {
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@@ -817657,18 +817523,12 @@
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-				"text": "13.70",
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 			"kt-HC": {
 				"individualDifference": false,
 				"text": "12S+",
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 			"kt-NC": {
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 				"text": "12S+",
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@@ -821723,13 +821583,7 @@
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-				"individualDifference": false,
-				"text": "13.70",
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-		},
+		"tierlistInfo": {},
 		"versions": [
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@@ -834779,13 +834633,7 @@
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-		"tierlistInfo": {
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-				"individualDifference": false,
-				"text": "13.70",
-				"value": 13.7
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-		},
+		"tierlistInfo": {},
 		"versions": [
 			"29",
 			"inf"
@@ -953944,8 +953792,8 @@
 			},
 			"kt-HC": {
 				"individualDifference": false,
-				"text": "12B",
-				"value": 12.7
+				"text": "12C",
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 			"kt-NC": {
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@@ -965518,11 +965366,6 @@
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 			"kt-HC": {
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@@ -977605,11 +977438,6 @@
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 			"kt-HC": {
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@@ -981401,11 +981229,6 @@
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@@ -993854,11 +993672,6 @@
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@@ -1003714,11 +1003522,6 @@
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-				"text": "13.70",
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-				"text": "13.70",
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@@ -1017111,11 +1016899,6 @@
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@@ -1019981,23 +1019759,7 @@
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-			"kt-NC": {
-				"individualDifference": false,
-				"text": "12C",
-				"value": 12.4
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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@@ -1020942,11 +1020704,6 @@
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@@ -1022846,18 +1022588,13 @@
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 				"text": "12A",
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 			},
 			"kt-NC": {
-				"individualDifference": false,
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@@ -1023414,11 +1023151,6 @@
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@@ -1023981,23 +1023713,7 @@
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-			"kt-HC": {
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-			},
-			"kt-NC": {
-				"individualDifference": false,
-				"text": "12S",
-				"value": 13
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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 			"kt-HC": {
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-				"text": "13.70",
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 			"kt-HC": {
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 				"text": "12C",
@@ -1026436,11 +1026137,6 @@
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-				"text": "13.70",
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 			"kt-HC": {
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 				"text": "12E",
@@ -1026887,11 +1026583,6 @@
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-				"text": "13.70",
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 			"kt-HC": {
 				"individualDifference": false,
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-				"text": "13.70",
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 			"kt-HC": {
 				"individualDifference": false,
 				"text": "12B+",
@@ -1029056,11 +1028742,6 @@
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 		"tierlistInfo": {
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-				"text": "13.70",
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-			},
 			"kt-HC": {
 				"individualDifference": false,
 				"text": "12C",
@@ -1029486,11 +1029167,6 @@
 		"rgcID": null,
 		"songID": 1991,
 		"tierlistInfo": {
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-				"text": "13.70",
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@@ -1031094,13 +1030770,7 @@
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-				"text": "13.70",
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-			}
-		},
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 		"versions": [
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@@ -1031238,23 +1030908,7 @@
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-			"kt-HC": {
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-			},
-			"kt-NC": {
-				"individualDifference": true,
-				"text": "12S",
-				"value": 13
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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@@ -1031392,23 +1031046,7 @@
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 		"songID": 2005,
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-			"kt-HC": {
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-			"kt-NC": {
-				"individualDifference": false,
-				"text": "12A+",
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-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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 			"28-omni",
@@ -1031822,13 +1031460,7 @@
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-				"individualDifference": false,
-				"text": "13.70",
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-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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@@ -1032127,23 +1031759,7 @@
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-			"kt-HC": {
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-			},
-			"kt-NC": {
-				"individualDifference": false,
-				"text": "12S",
-				"value": 13
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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 			"28-omni",
@@ -1032281,23 +1031897,7 @@
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 		"songID": 2011,
-		"tierlistInfo": {
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-				"text": "13.70",
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-			"kt-HC": {
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-				"text": "12A",
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-			"kt-NC": {
-				"individualDifference": false,
-				"text": "12A",
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-			}
-		},
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 		"versions": [
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@@ -1033125,23 +1032725,7 @@
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 		"songID": 2017,
-		"tierlistInfo": {
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-			"kt-HC": {
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-			"kt-NC": {
-				"individualDifference": false,
-				"text": "12C",
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-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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 			"28-omni",
@@ -1033969,23 +1033553,7 @@
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-			"kt-HC": {
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-			"kt-NC": {
-				"individualDifference": false,
-				"text": "12A",
-				"value": 12.8
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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@@ -1034261,23 +1033829,7 @@
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-			"kt-HC": {
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-			"kt-NC": {
-				"individualDifference": false,
-				"text": "12A",
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-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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@@ -1034967,23 +1034519,7 @@
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 		"songID": 2030,
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-			"kt-HC": {
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-			"kt-NC": {
-				"individualDifference": true,
-				"text": "12A",
-				"value": 12.8
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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@@ -1035121,23 +1034657,7 @@
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-			"kt-HC": {
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-			"kt-NC": {
-				"individualDifference": false,
-				"text": "12A",
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-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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 			"28-omni",
@@ -1035413,13 +1034933,7 @@
 		"playtype": "SP",
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-				"individualDifference": false,
-				"text": "13.70",
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-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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 			"28-omni",
@@ -1035560,23 +1035074,7 @@
 		"playtype": "SP",
 		"rgcID": null,
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-				"text": "13.70",
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-			"kt-HC": {
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-			"kt-NC": {
-				"individualDifference": true,
-				"text": "12D",
-				"value": 12.2
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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 			"28",
@@ -1036131,23 +1035629,7 @@
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-			"kt-HC": {
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-			"kt-NC": {
-				"individualDifference": true,
-				"text": "12C",
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-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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 			"28-omni",
@@ -1036423,13 +1035905,7 @@
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-				"individualDifference": false,
-				"text": "13.70",
-				"value": 13.7
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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 			"28-omni",
@@ -1036687,13 +1036163,7 @@
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-				"text": "13.70",
-				"value": 13.7
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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@@ -1038331,13 +1037801,7 @@
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-				"individualDifference": false,
-				"text": "13.70",
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-		},
+		"tierlistInfo": {},
 		"versions": [
 			"29"
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@@ -1038589,13 +1038053,7 @@
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-				"text": "13.70",
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-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
 			"29"
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@@ -1038721,13 +1038179,7 @@
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-				"individualDifference": false,
-				"text": "13.70",
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-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
 			"29"
 		]
@@ -1038853,13 +1038305,7 @@
 		"playtype": "SP",
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-				"individualDifference": false,
-				"text": "13.70",
-				"value": 13.7
-			}
-		},
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 		"versions": [
 			"29"
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@@ -1040497,13 +1039943,7 @@
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-				"individualDifference": false,
-				"text": "13.70",
-				"value": 13.7
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
 			"29"
 		]
@@ -1041469,13 +1040909,7 @@
 		"playtype": "SP",
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-				"individualDifference": false,
-				"text": "13.70",
-				"value": 13.7
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
 			"29"
 		]
@@ -1042000,13 +1041434,7 @@
 		"playtype": "SP",
 		"rgcID": null,
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-				"individualDifference": false,
-				"text": "13.70",
-				"value": 13.7
-			}
-		},
+		"tierlistInfo": {},
 		"versions": [
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 		]