three blade props rock! i broke this one and am using the stock prop at the moment. not nearly as nice looking or sounding. ill be going back. more grass clearance too. just make sure to balance them well. they need it! big time!
plus the stock ones dont have the realistic looking prop centers like the real plane uses. these do. bonus!
also create great drag for landing. slows you right down into the wind with those big fat blades on there.