PerroneFord
Contributor
PerroneFord, I was diving with cavers in a recreational, single-tank setting. They weren't taking six tanks on the dives. I might have been wrong, but I do not recall them using the bc under water.
With as little gas as would be needed to compensate for an Al80, I can certainly understand this. Context is key.
Oh, six tanks is pretty unusual, 3-4 is pretty common.