1. Kind of. A pressure tester just tells you what the pressures are it doesn't tell you the best pressure which is what sweetspotting does. Sweetspotting combined with a pressure tester is the best way to do that. However the tester will allow you to set your pressures more easily so you can get back to the ones on your QC card quickly and easily if you ever mess with the regs.
2. 6. Don't touch it.
3. No. It won't work with any form of G6R unless you enjoy leaks caused by the HP blowing the seal between the asa and frame or frame and body.
This line is in remembrance of Jared Wilson, friend and paintball teammate who died on 7/27/2005.
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