I though maybe you did know but new folks come along & just read bit's & pieces.
You should be able to find a post here somewhere on how to change the reg psi by changing out the washer stack in your regulator. Surf up a "Ninja Regulator" video on rebuild/adjusting. Not a hard job but ( thinking of say the small benjimun tank or the one PA sells) if you raise the psi - or make it run wide open- you really have no way to control fill speed/psi as the valve for those tanks is not made to function like that. It's more of an off/on valve than any other fill valve.
Personally still not sold on any of the very tempting low cost compressors but the shoebox was down around $450.00 a while back and is well know. I use an Altros booster. Seems a horrible expense untill you use it the first time. Makes you smile like 2 new airguns! But hten you'd have to adjust your pellet budget.
John I have the huma reg set at 130 bar guess I’ll need to drop it down to 120 bar and play with the hammer adjustment.when I bought The WC I also Bought the omega compressor just pumping up the disco was a pain and that was only 2000 psi.Thanks for the web site I’ll check it out?