If someone is already a technical diver, proficient in the use of deco bottle handling then what value can a Cave Stage course offer to them?
I found almost NO similarity between using a deco bottle in tech diving vs using a stage bottle in cave diving. In addition to totally different motivations and gas management -- as rjack321 points out -- my deco bottles were always slung, whereas my 1 or 2 stages were always on top of my sidemount tanks.Gas planning with a bottom stage in a cave is nothing like using a deco bottle. There is both the gas management of its use and how to manage its loss - as a team.