Greetings
Well I have 2 single 104's, both with pro valves, I want to trade for some 95's. They are just too heavy for my old knees.
One is 7 years old and has just been hydroed/viped - galvinized
The other I bought new in 1977, was hydroed 1 1/2 years ago, and has just been viped. It has the lovely orange vinyl goop that Aqua-aire covered the galvinized pst tanks with.
I'll even through in some really old bands, I will never dive doubles again.

Cheers