All are great advice. Check your CG also. (roll inverted from level and see if it pulls down hard, if it does, you could probably get away with a rearward CG; Ideally, you want the plane to fly level inverted and upright or pull very slightly when inverted.

I have many planes that snap with a foward CG, but once the CG is back enough, the snap is lessened or even eliminated.

Hope this helps,
Brandon