Quote: (Originally Posted by
Dave Sutton)

Here's the fallacy: NO YOU CAN'T. Not in any sort of real C02 hit. ESPECIALLY not deep.
By the time you can even think that you need to do it, you cannot hold your breath for 2 seconds. You'll drown. To think otherwise is wishful thinking. I used to believe that what you write was true. My experience proved otherwise. I'm wiser now...
Dave
Ditto. I know someone who has taken two hits - one with, one without BOV. In both cases, breath-holding was impossible and the BOV made the switch easier (although the event was no more pleasant).
Why take the risk? No downsides other than cost. Stuff the Luddites, get one. Any Luddites might want to try a hit or watch someone having one before nay-saying.