I prefer non auto dump valves, that way you can ease springs whilst under the water and still share the experience with your buddy (not commando) upon surfacing. Adds a new dimension to the term off gas.
I can give practical demonstrations most dive days, however sources of ignition are not welcome.
What does everyone else think?
-- Edited by Biohazard at 11:07, 2004-12-03
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You dont have to swim faster than sharks..... just faster than your buddy