Giving advise and getting advise is so hard, like mentioned before everyone has different likes and needs. The dive shops by me are limited to 2, and most dont carry 3mils for rental purposes. They only sell 3mils and rent 7mils for the quarry in pennsylvania. The shop i deal with wont let me use a 3mil in the pool which is supposed to be 80f, if i can find one that would in the new york area the scubapro small i tried on is a perfect fit and supposed to be warmer suit than most it would make my decision of 3m or 5mil easier. I can always buy a hooded vest for repetitive dives and night ones then. Just afraid of getting too thick a suit. Also have to take into consideration the compression issue over time suits loose some of their insulation at deeper depths and the seasons i vacation in. Thanks for everyones advise, im soaking it all in.