You know I noticed that. The funny thing is I think it would be able to justify it's self. When I have nicked a prop it's almost always that outer 1/2" tip by going with a three blade it's a smaller diameter and that would equate to less chance of nicking a prop. Less nicked props equal savings. The funny thing is I would never really be able to tell when I saved the money because you can't tell when you almost nick a prop