Gary, I tried an APC 12.25X3.75 that gave great vertical, but the noise level was a bit too high. All I had in the box was an MA 11X7 which worked better, but I'm still going to experiment a bit with some other props. I think a 11X6 might be a good compromise.

Here;s the link to the manufacturer;s web page, btw: http://www.hsrcm.com/

SmallFly, I have 5 flights on her and still sorting it out. For flights 4and 5 the CG was moved back to 1/4" behind the main spar and that really brought the plane to life. Even w/ the 11X7 it will hover w/out difficulty. rudder authority is excellent, though it pitches quite a bit to the belly. This is my first FF machine, so I really don't know what to expect, since I've been flying IMAC/Pattern for the last few years, but this sure is fun!!

Gary, are you the same Gary S that built the GP Extra kit along w/ me back in 1999???