I have a stick type model that snaps smartly to the right with just elevator. It is a 60x14"wing, 54" length fuselage, everything set to 0-0, CG set at 3.75". It does well when a limited amount of elevator is used, but go to about 35 degrees and it just snaps only to the right. I have a 3D model that does 3 foot loops, and maintains perfect flight. Any suggestions?