I can't speak for Jeff, but I have had nothing but nightmares with the HS205s & HS225s in 40 sizer Fun-Flys. I run these sucessfully in 160+ MPH pylon racers, but not in Fun Flys. I've lost a few Fun-Flys due to stripped gears, nylon & metal gear sets. I don't agree with an earlier statement of a glider puts more stress on their servos than a Fun-Fly - Obviously you haven't seen my Fun-Flys and the manuvers they are designed to perform! LOL.
Also remember that Fun-Fliers run high RPM engines that subject these servos to high frequency vibrations. We run giant scale servo arms that put more stress on the gear train of a servo, and we connect our control rods to their respective clevises as close as we can to the control surface to get +/- 70 plus degrees stroke. Then we put them in a Tornado 3D manuver with full deflection and full throttle just to watch it climb! STRESS? - I THINK SO! LOL
That is what Fun-Flys are all about!
Kevin