Kirby Pollard
Guest
I have been diving dual 100's for awhile now, perfect for a 5'9" 220 lb guy with a good sac rate. If your a small person, dual HP or LP 80s work great. Need more air to go deeper longer? Carry sling bottles. Bigger tanks are too heavy for shore diving. No one mentioned why duals are such a great choice. Redundancy. Every new diver should start with them, and a sling bottle. No more out of air emergencies. I really like the rule of thumb thats says, don't go any deeper than the size of your tanks. AL 80, 80 ft, ST 100, 100 ft. Unless your going to 260 ft, or you have a really bad SAC rate, you probably don't need dual 130s. If thats the case, dive alot more until you become more aerobically fit before you do deep dives.
Kirby
Kirby