Quote: (Originally Posted by
kevini)

IThe strong currents combined with overweight bailout 7L tank was difficult and I ended up chewing up my DIL and O2.

Does tanks are a b&sterd to dive with. Like Neil said, use rigging kits and convert the ali 11 liters to stages.
On our wreck trips we use two of those as bailout, one with TX and one with EAN50. They aren't fun to handle in the zodiac, but once in the water, you forget that they are there. I recommend mounting them sidemount. When sidemounted, you don't even have to leave your tanks behind when crawling through small holes in wrecks. Works like a charm.