diff --git a/stable-crust/grid/system-stable/gmm-tree.json b/stable-crust/grid/system-stable/gmm-tree.json
index 0ea6d359dda0865c86bdcb6c61db7bbf869c6d95..8f671753b6d88083377d7714e5fdee4510e568aa 100644
--- a/stable-crust/grid/system-stable/gmm-tree.json
+++ b/stable-crust/grid/system-stable/gmm-tree.json
@@ -1,10 +1,10 @@
 [
-  { "id": "NGA_EAST_2023", "weight": 0.16665 },
-  { "id": "NGA_EAST_2023_ADJUSTED", "weight": 0.16665 },
-  { "id": "NGA_EAST_SEEDS_2023", "weight": 0.08335 },
-  { "id": "NGA_EAST_SEEDS_2023_ADJUSTED", "weight": 0.08335 },
-  { "id": "ASK_14_BASIN", "weight": 0.125 },
-  { "id": "BSSA_14_BASIN", "weight": 0.125 },
-  { "id": "CB_14_BASIN", "weight": 0.125 },
-  { "id": "CY_14_BASIN", "weight": 0.125 }  
+  { "id": "NGA_EAST_2023", "weight": 0.1111 },
+  { "id": "NGA_EAST_2023_ADJUSTED", "weight": 0.1111 },
+  { "id": "NGA_EAST_SEEDS_2023", "weight": 0.05555 },
+  { "id": "NGA_EAST_SEEDS_2023_ADJUSTED", "weight": 0.05555 },
+  { "id": "ASK_14_BASIN", "weight": 0.1667 },
+  { "id": "BSSA_14_BASIN", "weight": 0.1667 },
+  { "id": "CB_14_BASIN", "weight": 0.1667 },
+  { "id": "CY_14_BASIN", "weight": 0.1666 }  
 ]