Really Eddie C, That’s some real chutzpah coming from you!

70X7, I agree with the advice your getting to check the center of gravity. Make sure the plane is a touch nose heavy, not neutral, not a little tail heavy. I'll bet this will take care of 90% of your problem. Once you get the plane flying "on the rails" you can start to move the cg back a little at a time to make it more responsive to control inputs.

This has happened to all of us even the "Experts". Years ago North American Aviation was working on development of the Hound Dog Missile. The thing was tail heavy to the point the autopilot had to make corrections about 8 times a second, a nearly constant rate. Even with the auto pilot working that hard NAA could not get the missile to hit the target. The solution was to put about 50 lb. of led in the nose and it solved the problem.

Rrragman