Hey all, I have a 1991 Mercury XR4 on a 18 ft bass boat that will only run 5000 rpm at WOT. Boat weighs 1200 lbs dry, I calculated total weight to be somewhere around 2200 lbs. I had a 26 tempest before and quickly realized it’s way too much prop, was only getting 4500 wot. Now I dropped 4...