Thanks for all the input.
I also took RangerJ's advice and talked to someone on AT who owns one. I am looking at other sights because my Range Rover with its hood and outside diameter is a little big for my Jaguar's compact riser. If I get another sight though, it probably won't be the Pendulum. I might end up going back to multiple pins, which I've shot with before, and liked them(I'm not saying that I don't like the Range Rover though).