Is it common to use 30/30, or do most stick to 32% in the 100' range? Not asking cause I am thinking of using a gas I am not trained on just asking out of curiosity and the expense of HE, what folks are diving..
(Not trained on HE)
Maybe a better (or a second) question would be is it commonly use in the 100-120' range ?
(Not trained on HE)
Maybe a better (or a second) question would be is it commonly use in the 100-120' range ?