Well I've been diving 130cuft with a 30cuft pony as backup air source.
On my deep dives upto 150ft, what typically happens, is that I'll still have air in my 130, and my deco obligation grows and grows, bringing me up early. So as we begin a new dive season in the North East. I've been giving it some thought for a resolution. One was to hang a deco bottle off the boat, perhaps 80% thus greatly reducing my deco time. I just seem to have misgivings hanging the bottle off the boat. A second though was to carry this additional 30cuft pony. I'm not sure that I've seen this configuration and was looking for thoughts.
On my deep dives upto 150ft, what typically happens, is that I'll still have air in my 130, and my deco obligation grows and grows, bringing me up early. So as we begin a new dive season in the North East. I've been giving it some thought for a resolution. One was to hang a deco bottle off the boat, perhaps 80% thus greatly reducing my deco time. I just seem to have misgivings hanging the bottle off the boat. A second though was to carry this additional 30cuft pony. I'm not sure that I've seen this configuration and was looking for thoughts.