i have 2 regs, and now i have 2 extra shims after reading the manual, both of them blow air out when i turn them all the way down which broke my pressure tester
gun-)-piston-)()()(-input i thought it was )) then piston but the manual looks like only one.
gun-))-piston-)()()(-input yields a slightly lower pressure and less creep on the gauge. but in the other reg when i try to do that, it keeps the regulator from even screwing together! also, the little orange pad on the piston of the "bad" reg has a crescent moon stamped into it from not lining up properly or something along those lines.