I would like to apologize in advance for the double-post and change of topic. As well as if I sound like a

, as this is my first Cocker.
When I unscrewed my LPR, I saw the screw on inside, looking at the back(when installed), what way should I turn the screw to decrease pressure? and what would happen if it was too low or high??
Also, i looked at the Inline, and saw that screw, what way should I turn the screw to decrease or increase pressure? What would happen if this one is set too hight or low??
Any help will be appreciated

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WGP Autococker Trilogy Pro(shut up!)
Empire ReLoader 2
Pure Energy 72/4500 Stubby
VL Orion w/custom camo paint
Halo B w/Rip Drive and Crossfire 45/4500(just kidding

)