I bought 3 gauges from the same guy as "air pressure gauges".. The first one i ruined by tightening it by hand by just grabbing the face and turning instead of using a wrench on the fitting on back.. I did exactly as the instructions on the decal said. I even installed the new gauge, it holds steady a 2 psi when i was switching the hose I plugged one with my thumb and it bumped up to 6-7 psi.. Wouldn't partially closing the valves cause the pressure to go up? And pressure going up is not good correct? So what am I missing? Don't I want low pressure? Seems to me I'm missing something here?

I believe in catch and release. I catch then release to the grease..

BG. CSBG. LMB. HSB. RES.

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