? for the rebreather divers

[Kirk]

I’ve been in one of them a few times, though I don’t recommend it, for it is rather unstable.  I’ve been in a few hundred feet, but each time I turned because I got scared when I came across the same major breakdown area (and I don’t get scared easily).  The visibility in that one is usually good.  The use of a rebreather is a good idea, less percolation, though more important is to have good trim, run a line, and be cave trained.    I did all those things, but that said, I really don't recommend going into them.  - Kirk