This week I'm diving a steel high pressure 80, which we can pump with up to 3500 psi of Nitrox, allowing more dive time by having more air AND more oxygen! But the tank is still a shorty shorty as if it were a 63, and it adds an extra 4 lbs or so over aluminum, so I don't have to wearing as much lead. I like the way they dive here in Florida!!!
And of course I'd never drink & dive, but I'm definitely not going diving without a little treat from Restless Spirits to enjoy when the day's diving is done!