Hi Duane,
I just got back from flying the Simla again. That makes over 25 flights so far. On my Simla I sealed all control surface hinge lines with clear Monokote. Today we had 20-25mph winds. No problem for the Simla. It penetrates well and floats on landings. Knife edge is no problem at half throttle with the 120AX. By the way I am using a 15X10 APC two blade prop. Congratulations on the VR/CS "Concours Award"! It is well deserved for all the work you have put into bringing the Simla to life.
Thom