Appreciate the input Jack. I've heard the same thing, that the 20x10 is the way to go, but there seems to be a lot of variation between brands. I've heard 20 pounds thrust on the Bolly and as high as 26 pounds on the Moki prop. I've also heard good things about the Menz S and APC props as well. I'm hoping somebody has tried a lot of different props and has a pretty good idea which brand is best for my style of flying. That will save me a lot of experimenting and a few dollars, as this size prop isn't cheap! Anybody have any specifics?