I replaced my Atomic4 with a Sole Diesel 26 HP. Having had the engine for one season, under varying conditions including pushing through Dodd Narrows an hour early (! My mistake) I have nothing but praise for this splendid little engine. The footprint is smaller than the Atomic and the top of the engine is lower and flat in the engine "box" which makes maintenance very easy. Not inexpensive, I admit, but I don't regret the decision one bit. The Sole is a Marine version of Mitsubishi, put out from Spain. That's my two cents! Jonathan Whittingham