Does this need to be done by a airsmith or can I do it at home? I have two tanks with flatline regs that I'm trying to conver to regular tanks.
Btw, why doesn't anyone want flatline regs anymore? Cause they're a PITA to screw on?
Btw, why doesn't anyone want flatline regs anymore? Cause they're a PITA to screw on?

but managed to get it off without a scratch.
off it came. Put the Flatline on a 92/45 and a ninja on the 45/45. Filled them up, and good to go. 
when I re-assembled it, I got mixed up on which side originally had the gauges and the which one had the fill nipple. I partially screwed the fill nipple into the high pressure port for the gauge. The fill nipple threads were slightly different, so when I corrected my mistake, my high pressure gauge did not want to seal up in the right orientation. Now I have both of my gauges upside down.
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