ORIGINAL: nitroairplane
DEFINATLY BUY SOME BLACK COX PROPS BUT NOW THEY HAVE SOME HIGH PERFORMANCE YELLOW ONES BEING MADE FOR HIGH PERFORMANCE SO IT MIGHT BE WORTH PICKING UP A FEW OF THOSE.
The yellow ones are soft, while the grey are the high perfomance ones as usual, unless I have misunderstood something. The blade shape is also quite tiny and only suited for low drag planes.