diff --git a/database-seeds/collections/charts-iidx.json b/database-seeds/collections/charts-iidx.json
index 2519b4502..84cda7a89 100644
--- a/database-seeds/collections/charts-iidx.json
+++ b/database-seeds/collections/charts-iidx.json
@@ -816591,8 +816591,8 @@
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 			"dpTier": {
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-				"text": "8",
-				"value": 8
+				"text": "7.5",
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@@ -820958,8 +820958,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "7",
-				"value": 7
+				"text": "6.5",
+				"value": 6.5
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 			"hashSHA256": null,
 			"inGameID": 23012,
@@ -885866,8 +885866,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "8.5",
-				"value": 8.5
+				"text": "8",
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 			"inGameID": 24023,
@@ -886491,8 +886491,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "9",
-				"value": 9
+				"text": "8.5",
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 			"inGameID": 24024,
@@ -892660,8 +892660,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "10",
-				"value": 10
+				"text": "9.6",
+				"value": 9.6
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 			"hashSHA256": null,
 			"inGameID": 24034,
@@ -914008,8 +914008,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "7",
-				"value": 7
+				"text": "6.5",
+				"value": 6.5
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 			"inGameID": 24068,
@@ -926450,8 +926450,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "8",
-				"value": 8
+				"text": "7.5",
+				"value": 7.5
 			},
 			"hashSHA256": null,
 			"inGameID": 26015,
@@ -927656,8 +927656,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "8",
-				"value": 8
+				"text": "7.5",
+				"value": 7.5
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 			"inGameID": 26017,
@@ -947571,8 +947571,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "9",
-				"value": 9
+				"text": "8.5",
+				"value": 8.5
 			},
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 			"inGameID": 26050,
@@ -954153,8 +954153,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "7",
-				"value": 7
+				"text": "6.5",
+				"value": 6.5
 			},
 			"hashSHA256": null,
 			"inGameID": 26062,
@@ -1020831,8 +1020831,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "8",
-				"value": 8
+				"text": "7.5",
+				"value": 7.5
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 			"hashSHA256": null,
 			"inGameID": 25047,
@@ -1026311,8 +1026311,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "10",
-				"value": 10
+				"text": "9.6",
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@@ -1034101,8 +1034101,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "8.5",
-				"value": 8.5
+				"text": "8",
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@@ -1076956,8 +1076956,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "9",
-				"value": 9
+				"text": "8.5",
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@@ -1138584,8 +1138584,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "8",
-				"value": 8
+				"text": "8.5",
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 			"hashSHA256": null,
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@@ -1163181,8 +1163181,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "11",
-				"value": 11
+				"text": "11.2",
+				"value": 11.2
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 			"hashSHA256": null,
 			"inGameID": 28015,
@@ -1185425,8 +1185425,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "8",
-				"value": 8
+				"text": "7.5",
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@@ -1185721,8 +1185721,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "9",
-				"value": 9
+				"text": "8.5",
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@@ -1196953,8 +1196953,8 @@
 			"bpiCoefficient": null,
 			"dpTier": {
 				"individualDifference": false,
-				"text": "9",
-				"value": 9
+				"text": "9.3",
+				"value": 9.3
 			},
 			"hashSHA256": null,
 			"inGameID": 29099,