EricTheDood
Contributor
Among other factors, not everybody will diving at 100 feet or more and spending one to three minutes at depth for "assessment" after an out of air emergency.
True, but there's only one way to find out.
I don't see the relevance to pony bottle size. An OOA buddy will not be getting my pony;.
The OOA buddy would be getting his or her own pony.