I have a 04 Ranger 521vx, with a Opti 225 that is propped with a Tempest Plus 25 P 14.625 D 3 blade prop. I am trying to improve the hole shot because when loaded it is a bit of a dog. A dealer suggested removing one of my exhaust ports to free up the prob but I wanted to know does anyone run a 4 blade prop. What size would you recommend, how much does your top end speed drop and how does it affect the handling of the boat? With the existing prop the motor runs about 5500 RPM wide open. Any suggestions would be appreciated.