One DM on my local (Great Lakes) boat, who is also a tech diver, started off his briefing a few months back by saying something along the lines of that tech divers have a "don't touch my sh*t" attitude and so we won't touch yours unless you ask for help.
A regular buddy did his OW cert under older-school PADI instructors, who taught the quarter turn back thing. I told him if he wants to do that on his tanks, whatever, but don't touch mine unless I ask.
A regular buddy did his OW cert under older-school PADI instructors, who taught the quarter turn back thing. I told him if he wants to do that on his tanks, whatever, but don't touch mine unless I ask.