RE: Greatplanes Cap 21
Fazer.
I believe what you have is a CAP 20L, but I may be wrong. I think GP only kitted the .40 and 1.2 sized Cap 21 and neither of them was done in fiberglass. The CAP 20L was in glass/foam.
All of the CAP aircraft are pilot's aircraft and have to be flown as such. You must be mindful of airspeed/attitude or it will indeed snap out of the sky and bite you.
Weight and CG are critical to all of these planes.
They are excellent aerobatic airplanes but if you don't fly them 100% of the time, they don't last very long.
Good luck with yours...and if you don't want to... I'll trade you one of my kits for it.
take care,
Dan
Carolina Custom Aircraft