My buddy has a 2015 115/80 Merc on a 2015 Lowe Roughneck side console. It runs 31-32 with one person, or two, or three. Seems like it'll run that speed no matter the weight. The day we had 3 people I'm about 220, one guy is around 260, and the guy that owns the boat is only about 140. We had 4...