To help tame the snap a bit you can try to:

i. make the plane slightly nose heavy
ii. raise the ailerons by 1/8" and not leave it at level
iii. mix in some spoilers with the elevators, I think QQ does that for his Yaks too, I vaguely remember reading it somewhere, might be wrong about QQ but it does help with a snappy plane. Mix it so what when you pull max ELE the spoilers are raised but about 1/8".
iv. sell the plane and buy the CMP Katana, she is such a sweet plane to fly!

I flew one of the Global Raven 40, everyone told me it was a lemon, the plane will not even get off the ground/will snap when you loop it/snap as you come in for landing, I was happy with it, flew it like nuts and it never snapped on my until the end when I tookher up high and pulled hard loops, that was when I learnt how nasty the plane was. I did raise the ailerons by 1/8" and that might be why I had fun with the plane.