I have a 4.2 runabout with a 40 H Mercury 2stroke. I've found at times it will lean over to port side at times but over come it with the trim. Some days does it some days don't. Has never done it off shore tho only going in the broad water or rivers. Can do 30knts/55ks without leaning but at times it does. I put it down to a combination of weather conditions, tide, prop torq ,trim and how you drive to those conditions.