Double Tank Size

[bamamedic]

Me too, but mine are Heisers not Fabers. I don't suppose it helps the op though.

I really can't understand the reasoning for the plethora of US cylinder sizes/pressures, backgas cylinders here are invariably steel, and come in 7, 10, 12 or 15ltrs - pick the size that gives you the amount of gas you need.

But that's way too simple! We Americans like to complicate things

 

[MaxBottomtime]

I used to dive with LP80s, Faber 95s and PST 120s. Most of my wreck dives involved the 120s and one or two AL40s for deco. I hadn't used doubles for a few years until last month when I dived the UB88 with PST119s and a 40. I felt very heavy at the surface, especially the climb back up the ladder. If I were to dive deeper wrecks I would probably get a rebreather.

 

[David_57]

I own Worthington HP 100's, I have also dove with 120's when in Scapa Flow, The Orkeneys but found them heavy to lug around above water no problems below they trim out perfect.