The Flying Fool 45 is 1.41 times the size of the Flying Fool. That gives it twice the wing area of the Flying Fool. At 20% MAC the C.G. is .10" aft of the leading edge of the bottom wing. that is 2 1/16" behind the leading edge of the top wing.
Dennis is right about the flaps, they need to go. When you give the airplane up elevator the flaps deflect downward. If there was no elevator the flaps would exert a downward pitch moment on the airplane. They act much like an elevator on the back edge of a combat wing. The elevator must generate enough force in the pitch up direction to overcome the down pitch force of the flaps plus enough to cause the airplane to pitch up. 43 degrees is way too much elevator throw. At full throw the enlarged elevator is doing a lot to slow the airplane. Reduce the elevator throw to 25 degrees up and down. The airplane will never be a precision aerobatic airplane, but the Flying fool 45 will do inside and outside loops, inverted flight, wingovers, and lazy eights. It is designed as a sport airplane, tweak the controls on your airplane and see if she will not give you a lot of fun flights.
Pat