I have a champion 181 with a Mariner EFI 150. I have a 23 temptest prop on the Mariner and am thinking about going to the Fury? Have any of you noticed as positive change in your boat as what I am hearing from every other make of boat? Just wanting some imput from other Champion owner. Right now alone, my top end is about 60mph sometimes 61 or 58,59. How much better performance will the fury prop make for me? Thanks for taking the time to give me your opinion.