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Sharky1948:
NWGratefulDiver:Prolly explains why you see so many of us old farts getting into tech diving ...
... Bob (Grateful Diver)
Question is:Sharky1948:
What the heck were they using before? Ice cream sticks and rubber bands?Reported as less painful**
Meng_Tze:Question is:
How come YOU found this? What were you looking for? and don't say you were looking for tri-mix (as in the gas).