I'm only doing indoor diving (fresh water) at the moment, wearing a 2mm suit without any weightbelt. Still I have the problem to get negatively bouyant at the surface if I do long exhales. Needless to say it's impossible to relax if I constantly have to worry to sink below the surface. A thicker suit is not really an option because of the water temperature. Is there an easy solution to this? ![Big Grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)