ok i bought a few used bare supra drysuits and i want to do this right..i went in the water with a friend and had 22 lbs of lead and couldnt sink...made sure that all the air was out of the suit before i geared up..was wondering what the norm was in terms of how much weight to start off with.i am only 5 foot 3 and 105lbs..also does what you wear underneath add to the boyancy of the suit?would apreciate any help..by the way in case anyone is wondering..i bought both suits because i got them for very cheap and no neither one leaks..