Hello!
I am 6' 225lbs and a new diver, I was the one that causes everyone to go back to the boat too! However since I am in my second year I have significantly gotten better and can almost reach the NDL on an AL 80. I am going to get a HP 119 for myself so as I improve I can get two NDL dives out of one tank, and only have to get fill once a day. just my $0.02
I am 6' 225lbs and a new diver, I was the one that causes everyone to go back to the boat too! However since I am in my second year I have significantly gotten better and can almost reach the NDL on an AL 80. I am going to get a HP 119 for myself so as I improve I can get two NDL dives out of one tank, and only have to get fill once a day. just my $0.02