Oh, I'm aware. It's not the, "BATF hates this one trick! Single drill defeats months of waiting for paperwork!" that people think. I've seen shop drawings somewhere, but the time in federal prison isn't worth it, IMO. I have a hard enough time hitting a sub-33% IPSC target at 50y on the clock as it is, I don't need to mag dump into the berm and still miss. (What are those, 33% A-zone only targets?)