I have a good friend with the 26 sisu he repowered with the 315 yanmar. Been on the boat alot. Boat was slow when he first picked it up. Had an old tired volvo in it(not sure what HP). Boat moves nice and rides nice for 26ft. The boat was commercial F/V prior to his ownership. Basic finish with nothing fancy. If you ever have any questions, I'm sure he wouldnt mind answering them. Just PM me and I'll put you in contact with him. He is on Long Island.