So I am looking to replace the 2 stroke Yamaha 50 hp with a new 4 stroke, probably the 60 HP since my 18' is rate for up to 60. Just tired of issues starting the 2 stroke. The marina I am dealing with doesn't for see any issues with the heavier motor. Anyone have a 60 hp 4 stroke on a 18' war eagle? Any issues with porpoising or getting on plane? Anything else I should worry about?