I looked at my LHS and they had no props that fit. I also just ordered a Master Airscrew gearbox from tower. I am currently running a 540 size 17 turn motor with 7.2/8.4v and my esc can only handle up to 8.4v and 15t. I may swap in a stock 550 motor if there is room. I also use this boat in a 13 mile long lake so it is rough most of the time. Do any of you have pictures of your boats?