Good call. The cleanest way to do it is with a mill. A buddy of mine works at a shop so he buzzed it off for me cleanly, threw some flat black paint on it and then drilled and tapped some forward-facing holes for me so I can mount the timer bracket or whatever else I might want. Looks clean and cost me $50I’ll stick with the stock upper to keep the Superstock nazi’s happy. I’ll pull it after CMP next weekend and get it modified over my summer break.