diff --git a/Assets/Scripts/Editor/GeodesicMesh.cs b/Assets/Scripts/Editor/GeodesicMesh.cs
index f165cd4..d71a160 100644
--- a/Assets/Scripts/Editor/GeodesicMesh.cs
+++ b/Assets/Scripts/Editor/GeodesicMesh.cs
@@ -303,8 +303,8 @@ namespace Metamesh
 
             this.coau = (m + n) / LSQD;
             this.cobu = -n / LSQD;
-            this.coav = (-thirdR3 * (m - n)) / LSQD;
-            this.cobv = (thirdR3 * (2 * m + n)) / LSQD;
+            this.coav = -thirdR3 * (m - n) / LSQD;
+            this.cobv = thirdR3 * (2 * m + n) / LSQD;
         }
 
         public void CreateInnerFacets()
@@ -392,14 +392,15 @@ namespace Metamesh
 
         public void MapABOBtoOBOA()
         {
-            var point = new Vector2Int(0, 0);
+            //var point = new Vector2Int(0, 0);
             for (var i = 0; i < this.isoVecsABOB.Count; i++)
             {
                 var temp = new List<Vector2Int>();
                 for (var j = 0; j < 3; j++)
                 {
-                    point.x = this.isoVecsABOB[i][j].x;
-                    point.y = this.isoVecsABOB[i][j].y;
+                    //point.x = this.isoVecsABOB[i][j].x;
+                    //point.y = this.isoVecsABOB[i][j].y;
+                    var point = this.isoVecsABOB[i][j];
                     if (this.vertexTypes[i][j] == 0)
                     {
                         point = point.RotateNeg120(this.m, this.n);
@@ -414,14 +415,15 @@ namespace Metamesh
 
         public void MapABOBtoBAOA()
         {
-            var point = new Vector2Int(0, 0);
+            //var point = new Vector2Int(0, 0);
             for (var i = 0; i < this.isoVecsABOB.Count; i++)
             {
                 var temp = new List<Vector2Int>();
                 for (var j = 0; j < 3; j++)
                 {
-                    point.x = this.isoVecsABOB[i][j].x;
-                    point.y = this.isoVecsABOB[i][j].y;
+                    //point.x = this.isoVecsABOB[i][j].x;
+                    //point.y = this.isoVecsABOB[i][j].y;
+                    var point = this.isoVecsABOB[i][j];
                     if (this.vertexTypes[i][j] == 1)
                     {
                         point = point.Rotate120(this.m, this.n);
@@ -514,9 +516,9 @@ namespace Metamesh
             }
 
             //order vertices by x and then y
-            vertices.Sort((a, b) => { return a.x - b.x; });
+            vertices.Sort((a, b) => { return a.x.CompareTo(b.x); });
 
-            vertices.Sort((a, b) => { return a.y - b.y; });
+            vertices.Sort((a, b) => { return a.y.CompareTo(b.y); });
 
             var min = Enumerable.Repeat(int.MaxValue, m + n + 1).ToList();
             var max = Enumerable.Repeat(int.MinValue, m + n + 1).ToList();
@@ -566,7 +568,7 @@ namespace Metamesh
             var dist = -1;
             for (var i = 0; i < len; i++)
             {
-                cartesian[i] = vertices[i].ToCartesianOrigin(new Vector2Int(0, 0), 0.5f);
+                cartesian[i] = vertices[i].ToCartesianOrigin(Vector2Int.zero, 0.5f);
                 distFromO[i] = DistFrom(vertices[i], "O");
                 distFromA[i] = DistFrom(vertices[i], "A");
                 distFromB[i] = DistFrom(vertices[i], "B");
@@ -779,7 +781,7 @@ namespace Metamesh
             var nearIndex = 12;
             for (var i = 0; i < 12; i++)
             {
-                nearTo[i].Sort((a, b) => { return a[1] - b[1]; });
+                nearTo[i].Sort((a, b) => { return a[1].CompareTo(b[1]); });
                 
                 foreach (var item in nearTo[i])
                 {
@@ -876,6 +878,8 @@ namespace Metamesh
                 var tempFace = this.SetOrder(m, new List<int>(map[m]));
                 if (goldbergPolyhedronData.face.Count <= m)
                 {
+                    if (goldbergPolyhedronData.face.Count != m)
+                        Debug.Log($"goldbergPolyhedronData.face.Count != m: {goldbergPolyhedronData.face.Count} != {m}");
                     goldbergPolyhedronData.face.Add(tempFace);
                 }
                 else
@@ -900,6 +904,8 @@ namespace Metamesh
                     var tempVertex = new Vector3(cx / 3, cy / 3, cz / 3);
                     if (goldbergPolyhedronData.vertex.Count <= el)
                     {
+                        if (goldbergPolyhedronData.face.Count != el)
+                            Debug.Log($"goldbergPolyhedronData.face.Count != el: {goldbergPolyhedronData.face.Count} != {el}");
                         goldbergPolyhedronData.vertex.Add(tempVertex);
                     }
                     else
@@ -969,14 +975,14 @@ namespace Metamesh
             var radius = 1f;
             geodesicData.vertex = geodesicData.vertex.Select((el) =>
             {
-                var a = el[0];
-                var b = el[1];
-                var c = el[2];
+                var a = el.x;
+                var b = el.y;
+                var c = el.z;
                 var d = Mathf.Sqrt(a * a + b * b + c * c);
-                el[0] *= radius / d;
-                el[1] *= radius / d;
-                el[2] *= radius / d;
-                return el;
+                //el[0] *= radius / d;
+                //el[1] *= radius / d;
+                //el[2] *= radius / d;
+                return el * radius / d;
             }).ToList();
 
             return geodesicData;
diff --git a/Assets/Scripts/Editor/GoldbergBuilder.cs b/Assets/Scripts/Editor/GoldbergBuilder.cs
index fba7930..432c041 100644
--- a/Assets/Scripts/Editor/GoldbergBuilder.cs
+++ b/Assets/Scripts/Editor/GoldbergBuilder.cs
@@ -28,7 +28,7 @@ namespace Metamesh
             public List<Vector2> uvs;
         }
 
-        private VertexData CreateGoldbergVertexData(GoldbergVertexDataOption options, PolyhedronData goldbergData)
+        private static VertexData CreateGoldbergVertexData(GoldbergVertexDataOption options, PolyhedronData goldbergData)
         {
             var size = options.size;
             var sizeX = options.sizeX;// || size || 1;
@@ -92,7 +92,7 @@ namespace Metamesh
             };
         }
 
-        public VertexData CreateGoldberg(GoldbergCreationOption options)
+        public static VertexData CreateGoldberg(GoldbergCreationOption options)
         {
             var size = options.size;
             var sizeX = options.sizeX;// || size || 1;
diff --git a/Assets/Scripts/Editor/GoldbergPolyhedronImporter.cs b/Assets/Scripts/Editor/GoldbergPolyhedronImporter.cs
index b53c9af..c10abee 100644
--- a/Assets/Scripts/Editor/GoldbergPolyhedronImporter.cs
+++ b/Assets/Scripts/Editor/GoldbergPolyhedronImporter.cs
@@ -4,7 +4,6 @@ using UnityEditor;
 using UnityEditor.AssetImporters;
 using UnityEngine;
 using UnityEngine.Rendering;
-using static Metamesh.GoldbergBuilder;
 
 namespace Metamesh
 {
@@ -12,7 +11,6 @@ namespace Metamesh
     public class GoldbergPolyhedronImporter : ScriptedImporter
     {
         [SerializeField] float radius = 1;
-        [SerializeField, Min(2)] uint subdivision = 2;
         [SerializeField, Min(1)] int m = 1;
         [SerializeField, Min(0)] int n = 0;
 
@@ -49,13 +47,13 @@ namespace Metamesh
                 name = "Mesh"
             };
 
-            var builder = new GoldbergBuilder();
-            var options = new GoldbergCreationOption()
+            var options = new GoldbergBuilder.GoldbergCreationOption()
             {
+                size = radius,
                 m = m,
                 n = n,
             };
-            var data = builder.CreateGoldberg(options);
+            var data = GoldbergBuilder.CreateGoldberg(options);
             var vertices = data.vertices;
             var normals = data.normals;
             var indices = data.indices;