RE: CAP snap
All the full scale aerobatic airplanes are designed with enough elevator authority to easily stall the wing. They need it to perform the manuevers in their competition. And the models wind up having very much the same flight characteristics.
The Edge, Extra, Ultimate, Pitts, CAP, Sukhoi, etc all will stall easily when you've got the wing at high AOAs. It's their design.
What most modelers do is trim the elevator throw so that there is little excess throw. They often set dual rates such that the low rate is very forgiving on the elevator throw, while the high rate gives just enough more to stall the wing. And then they have full stick movement on low rate with some comfort, knowing that the elevator deflection isn't going to surprise them. And after awhile they've developed the feel for the airplane, and learned the speeds they need to fly to deal with that snappy airplane. And it ain't a snappy airplane no more.