I just pulled my boat and recondition from the deck down. New bottom paint, strips, and polished and wax. My question is my boat list to starboard in the slip, and always has (17 yrs). I originally thought is was the golf cart battery in the starboard lazeret, but changed it to a group 31. Now I think it's a full fuel tank (starboard) and empty waste tank (port). My 28.5 has a shoal keel. Any body else have this issue or fix the problem.