diff --git a/stable-crust/grid/ceus-stable/sscn/gk/source-tree.json b/stable-crust/grid/ceus-stable/sscn/gk/source-tree.json
index 91a8467d54be6cebae34dbc49f73342107e31397..4de996564aac5cd988e2504a9b6cbadb3b236ccb 100644
--- a/stable-crust/grid/ceus-stable/sscn/gk/source-tree.json
+++ b/stable-crust/grid/ceus-stable/sscn/gk/source-tree.json
@@ -1,10 +1,10 @@
 [
   {
     "id": "fixed",
-    "weight": 0.6
+    "weight": 0.5
   },
   {
     "id": "adaptive",
-    "weight": 0.4
+    "weight": 0.5
   }
 ]
diff --git a/stable-crust/grid/ceus-stable/sscn/nn/source-tree.json b/stable-crust/grid/ceus-stable/sscn/nn/source-tree.json
index 91a8467d54be6cebae34dbc49f73342107e31397..4de996564aac5cd988e2504a9b6cbadb3b236ccb 100644
--- a/stable-crust/grid/ceus-stable/sscn/nn/source-tree.json
+++ b/stable-crust/grid/ceus-stable/sscn/nn/source-tree.json
@@ -1,10 +1,10 @@
 [
   {
     "id": "fixed",
-    "weight": 0.6
+    "weight": 0.5
   },
   {
     "id": "adaptive",
-    "weight": 0.4
+    "weight": 0.5
   }
 ]
diff --git a/stable-crust/grid/ceus-stable/sscn/r85/source-tree.json b/stable-crust/grid/ceus-stable/sscn/r85/source-tree.json
index 91a8467d54be6cebae34dbc49f73342107e31397..4de996564aac5cd988e2504a9b6cbadb3b236ccb 100644
--- a/stable-crust/grid/ceus-stable/sscn/r85/source-tree.json
+++ b/stable-crust/grid/ceus-stable/sscn/r85/source-tree.json
@@ -1,10 +1,10 @@
 [
   {
     "id": "fixed",
-    "weight": 0.6
+    "weight": 0.5
   },
   {
     "id": "adaptive",
-    "weight": 0.4
+    "weight": 0.5
   }
 ]
diff --git a/stable-crust/grid/ceus-stable/usgs/gk/source-tree.json b/stable-crust/grid/ceus-stable/usgs/gk/source-tree.json
index 91a8467d54be6cebae34dbc49f73342107e31397..4de996564aac5cd988e2504a9b6cbadb3b236ccb 100644
--- a/stable-crust/grid/ceus-stable/usgs/gk/source-tree.json
+++ b/stable-crust/grid/ceus-stable/usgs/gk/source-tree.json
@@ -1,10 +1,10 @@
 [
   {
     "id": "fixed",
-    "weight": 0.6
+    "weight": 0.5
   },
   {
     "id": "adaptive",
-    "weight": 0.4
+    "weight": 0.5
   }
 ]
diff --git a/stable-crust/grid/ceus-stable/usgs/nn/source-tree.json b/stable-crust/grid/ceus-stable/usgs/nn/source-tree.json
index 91a8467d54be6cebae34dbc49f73342107e31397..4de996564aac5cd988e2504a9b6cbadb3b236ccb 100644
--- a/stable-crust/grid/ceus-stable/usgs/nn/source-tree.json
+++ b/stable-crust/grid/ceus-stable/usgs/nn/source-tree.json
@@ -1,10 +1,10 @@
 [
   {
     "id": "fixed",
-    "weight": 0.6
+    "weight": 0.5
   },
   {
     "id": "adaptive",
-    "weight": 0.4
+    "weight": 0.5
   }
 ]
diff --git a/stable-crust/grid/ceus-stable/usgs/r85/source-tree.json b/stable-crust/grid/ceus-stable/usgs/r85/source-tree.json
index 91a8467d54be6cebae34dbc49f73342107e31397..4de996564aac5cd988e2504a9b6cbadb3b236ccb 100644
--- a/stable-crust/grid/ceus-stable/usgs/r85/source-tree.json
+++ b/stable-crust/grid/ceus-stable/usgs/r85/source-tree.json
@@ -1,10 +1,10 @@
 [
   {
     "id": "fixed",
-    "weight": 0.6
+    "weight": 0.5
   },
   {
     "id": "adaptive",
-    "weight": 0.4
+    "weight": 0.5
   }
 ]