diff --git a/petri/src/lib.rs b/petri/src/lib.rs
index b10485e..a9191a0 100644
--- a/petri/src/lib.rs
+++ b/petri/src/lib.rs
@@ -307,7 +307,7 @@ impl Rule {
 					for x in 0..new.width {
 						let mut cell = base.get(y, new.width - x - 1);
 						if let (_, RuleCellTo::Copy(cx, cy)) = &mut cell {
-							let new_x = new.height - *cy - 1;
+							let new_x = base.height - *cy - 1;
 							let new_y = *cx;
 							(*cx, *cy) = (new_x, new_y);
 						}
diff --git a/uscope/src/main.rs b/uscope/src/main.rs
index b160474..dae132c 100644
--- a/uscope/src/main.rs
+++ b/uscope/src/main.rs
@@ -81,9 +81,10 @@ impl eframe::App for UScope {
 		for _ in 0..self.speed {
 			// benchmarks made with sand_stress_test at 50000 speed in a release build
 			// ~50ms
-			// self.dish.try_one_position_overlapped();
+			self.dish.try_one_position_overlapped();
 			// ~35ms
-			self.dish.fire_blindly_cached();
+			// TODO: has directional bias, figure out why and fix it
+			// self.dish.fire_blindly_cached();
 		}
 		let sim_time = sim_frame.elapsed();
 		// self.sim_times.push(sim_time.as_micros());