My buddy has a 2008 z6 with a merc 115 on the back with a spitfire 3 blade prop. I haven't driven in it but he says that boat will lean to on side or another real bad when he gets on plane. Any ideas what the problem may be? Obviously he thinks it would do something with weight distribution but that's not the case I would think at l least. Boats weren't designed to ride like that.