I'll be buying a new motor very soon for a Tracker Grizzly boat I bought. (New boat, welded alum, 18'L X 60"wide at transom bottom, 7 deg deadrise, 800 LB dry hull wt). Boat is weight sensitive so want to keep motor in the Suzuki 60 weight class. The Yamaha 70 is in this weight class, and would provide 10 more HP. Or, would it? Is the Yam 70 a "weak", or true, or "powerful" 70? Is the Suzuki 60 a "weak", or true, or "powerful" 60? I can get the Suz 60 significantly cheaper, and they have the "Gimme 6" warranty/service plan available if bought before June 30. Yamaha does not have YES warranty promo currently, so I would either have to wait to buy, or buy it myself, which would add $?? to the motor purchase price. Thanks for input.