Posted by Diver Z on April 05, 2005 at 15:27:51:
In Reply to: Octo vs. Pony Bottle posted by Dick Analog on April 05, 2005 at 15:16:10:
If you're looking for air source redundancy, another option would be a set of doubles -- using small cylinders such as 72's or even smaller, if you like. This would be more streamlined than slinging a pony bottle.