I may be completely off the mark here, but I'm pretty sure I read something a couple of years ago that said private jet firms send a lot of their pilots off to do aerobatic training.
I'm pretty sure Leading Edge (at Cumbernauld and Perth) done an aerobatic course, I would also check with Prestwick Flight Centre/Flying club because a number of their members are part of display teams flying aircraft like Chipmunks, Yaks etc.