I had this plane in the flag paint scheme. I used an OS 55AX and 12-x7 APC prop. It flew great for 7 flights, doing almost all aerobatics, then I lost power in the middle of my final approach turn and it nosed into the ground from 30 feet! It caved in the firewall and broke the forward fiberglass fuselage in too many places to repair. I used the Ailerons on low rates because it was very touchy with the factory settings and I tend to over-control. I have since discovered that the prop selection should have been an 11x7 on the OS 55AX (Read RCU) and not in the 12" range at all as OS recommends.