FX AMP Regulator on Crowns and Impact X (not all)

FX Crown serial under gauge
1803280241
second line
199018436

so?

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Last month Bought mk2 plus tax around USD 3.300 in my country...expect solid performance from this gun...Pain in my ass...!! Everytime i fill bottle from 220 to 250 bar, the regulator always creep from initial set point 120 bar to 130 bar..yesterday HUMA Regulator arrived...and Again it sucks, they delivered old type gen 1...anyone know how to make regulator strong enough not to creep...the fx regul can work normal under 220 bar only..(sorry for ny bad english).