I like Faber LP 95s, X7-100s, steel 72s and AL 72s. But if I had to have only one size tank for everything, it would have to be an AL 80 or AL 72) as nothing else is really suitable for stage diving, and without the ability to augment you gas with a 2-3 stages, your diving is going to be really limited.
Now, if you bend the rules and allow the AL 80 as a stage in addition to the one tank size you get for your primary gas, then it starts to get interesting.
X7-100s would be high on the list.
Now, if you bend the rules and allow the AL 80 as a stage in addition to the one tank size you get for your primary gas, then it starts to get interesting.
X7-100s would be high on the list.