[And]

<font color='#0000FF'>Hi

There is indeed bailout, in the little 3 ltr bottle.

But by the time you've finished using it for your BC (of course there are those who use drysuit for buoyancy) , flushing the loop perhaps and then replacing any gas in the loop used for mask clearing etc, there's not a lot left at 60 mtrs. Oh and then you have to breathe it from the air2 thing which then makes ascending a right pain as you need that umbilical for your ascent.

So Bailout in theory is correct, although in practice most use a stage bottle. (or those I've seen kneeling on the floor at Stoney at any rate)

One big downside which is rarely discussed is the actual drag of the thing, cluttered chest area, extra cylinders, I thought it was supposed to be easy.

Andy