Get a buddy to hold it, or get some wood and cut one to be the same fit to go into the bottom of the BCG opening and screw it into a bigger piece of wood so you can place the BCG on it and not roll too much. Just a thought. Never did it that way.. but never had the needed to stake a key either.

Very interesting information from Young. I have one of their chrome national match BCG that has run a few thousand rounds without any issues. It practically looks new.