im 190lbs and will be diving with a full body 5mm suit in freshwater... most of the diving would be above 30ft. seems like 12lbs of weight would be a good start? then add or subtract to see what works? whopperhead, just wondering why you use more weight for shallower dives? im assuming its something like you can just sink w/out having to kick... lol, but really i have no idea

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Thomas