I already have my controls surfaces moving about triple what the manauls specifies and does loops as tight as I dare (fearful any more elevator will break something) my rudder is as far as the hindge will allow it to move. it has more than enough rudder to knife-edge. I am wondering if I am just at the limits at what can be expected from a high-wing trainer, since it is designed to be stable.

Adui did you have any luck with the snap roll? will yours snap on elevator and rudder alone?