I see what you are saying. So if you are heavy in only a bathing suit, plus wearing a tank, you obviously can't really do a traditional weight check by adding/subtracting weight. You just use BCD (and lungs of course) to adjust buoyancy. This is not a situation that any of us up here are used to, of course.
What I'm saying is
- you weigh X in the bathing suit and you sink below eye level,
- you weight X + Y in the bathing suit + scuba gear and you float at eye level,
