RE: Impact
Tom,
I will get some throws written down tonight.
I setup my aircraft very soft as well. I an pretty close to gating my controls on normal flight mode.
Props: I currently run a 16.5x12W APC at 8500 RPM on the ground. It seems to be a good choice. I have a 16x13 for those windy days and I have tried a 17x12 which was also good.
As far as props are concerned I try to select a prop which will keep the engine happy. Select a prop which will allow the engine to rev to at least 8500 on the ground and you know that the load is right. Some people stick bigger props on the YS's to get RPM down so that they meet noise but I think this approach is wrong because all you are doing is adding more load and generating more heat. You are better of to ATV the engine back if you need to drop RPM. If your engine swings a 17x12 comfortably then it probably is a good prop. I found the 16.5 x 12W gives a good constant speed.
Regards,
Peter