Bailout gas.....how much is enough?

[Vtach]

I carry enough to get me to the surface, not a fan of team bailout at this point.  The only time I will dive a 40 is when I am shallow (100ft or less) and there is no decompression obligations.  So...it is pretty much at least one 80 for most dives.  Planned decompression dives, I will carry an 80 of bailout and an 80 of 50% up to 200ft.  Beyond that and I start adding more bottles....

I think a big point to make is that bailing early in a failure is paramount.  Once you choke on caustic or take a big CO2 hit, you will suck that bailout dry in no time and may find it difficult to reach a depth for the next gas switch.  If you are maintaining good situational awareness you can bail as soon as you recognize an issue arising.  You should still have your wits about you and may have the ability go back on the loop and manage the problem.  That is the nice thing about CCR, you have multiple options and if you are smart on how you use them you may not need your full bailout supply.