I'm a big fan of double HP100s (basically equivalent to 12L tanks). They trim out well and are easily managed. I own 3 sets of them and do my own fills so I know I'm always getting a good fill however most shops in New England have no trouble doing good high pressure fills.
I'm fairly short person 5'6" so HP100s work well for me down to 200ft with plenty of gas reserves.
I've owned sets of double LP95s, HP119s and I broke them all down to singles. If I were to buy again or find tanks at the right price, I'd probably pick up a set of LP85s.
Having said that, all my deep diving is now done on a rebreather. I keep one set of doubles on retainer if I need to dive open circuit and the other 2 sets are functioning as cascade banks for O2 and diluent
I'm fairly short person 5'6" so HP100s work well for me down to 200ft with plenty of gas reserves.
I've owned sets of double LP95s, HP119s and I broke them all down to singles. If I were to buy again or find tanks at the right price, I'd probably pick up a set of LP85s.
Having said that, all my deep diving is now done on a rebreather. I keep one set of doubles on retainer if I need to dive open circuit and the other 2 sets are functioning as cascade banks for O2 and diluent