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Hey guys does anyone know if lower units are interchangeable between high thrust and standard ie: a large prop to small prop lower unit? I have a 99' Yamaha 2-stroke on a 99' pathfinder tunnel. I was curious if there were any advantages of running the smaller wheel vs. the bigger. I understand the high thrust is for more of pontoon boats with a lot of drag but I'm pushing a 17' tunnel and have seen similar boats with the smaller wheel?