I ran this prop last year on a fat shaft 250XS, can be hubbed with flotorq for standard merc shaft.This prop ran as fast as the trophy, and carried a load like nobodys business. With a REAL load, 3 adult males, full fuel and full tackle in my Puma/250XS, I ran 75 MPH GPS !I have original receipt showing payment for prop ($550). I sent to Hydromotive and spent $200 on total factory refresh and have that receipt also....just got prop back and unrun since refresh. I cannot turn it to needed RPMs on my current boatThis will run on Cougars, Pumas with 250s and 300s$450 to your door.I might consider a 24 or possibly a 26 Bravo as partial or full trade if worked.GGG genejr@gradick.net