Bob wrote:

> just as you're
> suppose to yell "sheeeeeit" all the way up to the surface on ESA,
> to save you lungs from bursting.  :-)

LOL! One for the next lesson!

> I think through all of this and actually PRACTICE this manoeuver
> occasionally

I must make it a point to try it - but not until I have used the bottle of
BCD bladder disinfectant that I've had on my shelf for years :-)

Bjorn