I had one and learned to hover with it. Had a YS63 and it was unlimited vertical. First flight I fluttered the ailerons with standard servos. Mine would tip a wing if you pulled too hard when coming out of a loop. You either had to be smooth with the sticks, or yank the stick so it would wall right through the stall zone. Fun plane. I wadded it up trying to show off for the camera. Replaced with a Mojo profile and never looked back.

Mike