Well, spoke with cpt ron today and he said its the shewed up prop. Now its just a matter of deciding on an alum. or ss. Hes going to get back with when he gets back to the shop and sees what he has available. But its looks like a 13 oem prop is what im going to get and just keep the one i have as a back up just in case.Alex mine is nearly identical in terms of RPM and stock prop. Let me know what works for you!