Contact Plapps Marine on the web. Provide Matt with plenty of info (boat length, prop size, your current WOT RPM's.) Not sure of what your engine height is off the transom or what you're running boat wise.

I only run SS prop's but fish mostly on the Ohio River. Personal preference but I'd be replacing/repairing props monthly.

Most reputable shops will let you borrow a prop for testing purposes if you leave them your drivers license or credit card number. Get it done before everyone starts whining about their toys not running.

STAY WITHIN THE FACTORY WOT RPM RANGE.

Save some for seed.

Good Luck