dudes,
I am having a little problem following the lingo and the logic:
rb = rebreather, how do you buddy breath with rb's?
Only the Semi closed system allows.
bo = bail out bottle, is this the same as a pony?
a Pony is a small horse,
A upstream reg does not freeflow, a downstream does( not sure what upstream/downstream really means) but why isn't a reg that doesn't freeflow good? Or does this happen in the 1st stage and your back up reg stops as well?
If the reg malfunctions it will not deliver any air, not normally a problem if you have a backup system, or your buddy is close(a even greater backup)