Hello, I’m looking for some help on a replacement propeller for my pontoon 18 ft tracker Bass Buggy with a 40HP Evinrude. The aluminum one on it now is fine, it’s a 12 ½ x 13. I want to have an extra so thought I might as well get a SS one and have the old one for the extra. I found a close out deal on iBaots for a Michigan Wheel Rapture 11 ¾ x 15. Would this be a good replacement? I’m thinking a smaller diameter with a steeper pitch it should be okay, but want some input from someone with more experience. ThanksHere's the link for the new prop.http://www.boat-props.com/propellers...-14/index.html