diff --git a/fightstick/fightstick b/fightstick/fightstick
index 5f3cc29..43d1243 100755
Binary files a/fightstick/fightstick and b/fightstick/fightstick differ
diff --git a/fightstick/go.mod b/fightstick/go.mod
index 7fed315..f55ac68 100644
--- a/fightstick/go.mod
+++ b/fightstick/go.mod
@@ -11,4 +11,5 @@ require (
 	github.com/llgcode/draw2d v0.0.0-20200930101115-bfaf5d914d1e // indirect
 	github.com/yofu/dxf v0.0.0-20190710012328-5a6d1e83f16c // indirect
 	golang.org/x/image v0.0.0-20210216034530-4410531fe030 // indirect
+	gonum.org/v1/gonum v0.9.3 // indirect
 )
diff --git a/fightstick/go.sum b/fightstick/go.sum
index 277c8f3..26c94b1 100644
--- a/fightstick/go.sum
+++ b/fightstick/go.sum
@@ -75,6 +75,7 @@ golang.org/x/tools v0.0.0-20190927191325-030b2cf1153e/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gonum.org/v1/gonum v0.0.0-20180816165407-929014505bf4/go.mod h1:Y+Yx5eoAFn32cQvJDxZx5Dpnq+c3wtXuadVZAcxbbBo=
 gonum.org/v1/gonum v0.8.2/go.mod h1:oe/vMfY3deqTw+1EZJhuvEW2iwGF1bW9wwu7XCu0+v0=
+gonum.org/v1/gonum v0.9.3 h1:DnoIG+QAMaF5NvxnGe/oKsgKcAc6PcUyl8q0VetfQ8s=
 gonum.org/v1/gonum v0.9.3/go.mod h1:TZumC3NeyVQskjXqmyWt4S3bINhy7B4eYwW69EbyX+0=
 gonum.org/v1/netlib v0.0.0-20190313105609-8cb42192e0e0/go.mod h1:wa6Ws7BG/ESfp6dHfk7C6KdzKA7wR7u/rKwOGE66zvw=
 gonum.org/v1/plot v0.0.0-20190515093506-e2840ee46a6b/go.mod h1:Wt8AAjI+ypCyYX3nZBvf6cAIx93T+c/OS2HFAYskSZc=
diff --git a/fightstick/main.go b/fightstick/main.go
index b96f848..9f23a55 100644
--- a/fightstick/main.go
+++ b/fightstick/main.go
@@ -2,6 +2,7 @@ package main
 
 import (
 	"github.com/deadsy/sdfx/render"
+	"github.com/deadsy/sdfx/render/dc"
 	"github.com/deadsy/sdfx/sdf"
 )
 
@@ -11,7 +12,7 @@ func main() {
 
 	for k, v := range topPlanes {
 		render.RenderDXF(v, 300, k+".dxf")
-		render.RenderSTLSlow(sdf.Extrude3D(v, 2), 1200, k+".stl")
+		render.ToSTL(sdf.Extrude3D(v, 2), 400, k+".stl", dc.NewDualContouringDefault())
 	}
 	render.RenderDXF(top, 300, "top.dxf")
 }