diff --git a/examples/buffer_proto5.rs b/examples/buffer_proto5.rs
index 8b49647..a721b59 100644
--- a/examples/buffer_proto5.rs
+++ b/examples/buffer_proto5.rs
@@ -71,7 +71,7 @@ fn run_sim(id: u32, p: Params) {
     let set1_region = Torus::new_xz(set1_center, p.wire_set_major, p.wire_minor);
     let set2_region = Torus::new_xz(set2_center, p.wire_set_major, p.wire_minor);
 
-    let coupling_region1 = Dilate::new_iterated(
+    let coupling_region1 = Dilate::new(
         Wrap::new_about(
             Translate::new(
                 SwapYZ::new(region::and(
@@ -83,11 +83,11 @@ fn run_sim(id: u32, p: Params) {
             1.0, // one half-rev => y=1.0
             ferro1_center,
         ),
+        p.wire_wrap_dilation,
         p.wire_wrap_dilation / (p.wire_wrap_iters as f32),
-        p.wire_wrap_iters,
     );
 
-    let coupling_region2 = Dilate::new_iterated(
+    let coupling_region2 = Dilate::new(
         Wrap::new_about(
             Translate::new(
                 SwapYZ::new(region::and_not(
@@ -99,8 +99,8 @@ fn run_sim(id: u32, p: Params) {
             1.0, // one half-rev => y=1.0
             ferro2_center,
         ),
+        p.wire_wrap_dilation,
         p.wire_wrap_dilation / (p.wire_wrap_iters as f32),
-        p.wire_wrap_iters,
     );
 
     let coupling_wire_top = Cube::new_centered(
diff --git a/src/geom/region/mod.rs b/src/geom/region/mod.rs
index e1c6f8f..25b9b8f 100644
--- a/src/geom/region/mod.rs
+++ b/src/geom/region/mod.rs
@@ -250,9 +250,6 @@ impl Dilate {
     pub fn new<T: Region + 'static>(inner: T, rad: f32, res: f32) -> Self {
         Self { inner: Box::new(inner), rad, res }
     }
-    pub fn new_iterated<T: Region + 'static>(inner: T, resolution: f32, iters: usize) -> Self {
-        Self::new(inner, resolution * iters as f32, resolution)
-    }
 }
 
 #[typetag::serde]