I just bought a 2015 Bennington 20SLX with the Yamaha F90. My WOT RPM is about 5100 and 26-27 MPH. The prop that came on that motor is a 3 blade, 15P. The new prop from you guys is supposed to be delivered today. I ordered a 4 blade 13P (Prop #9413-133-13Hub #RBX-108) to see if it would take...
