I'm new to the PCP hobby and recently acquired an Air Venturi Avenger in .22 caliber. So far the gun is a blast to shoot and is a real tack driver out to 50 yds. I have a question on the regulator though. If I degas the gun and start with the screw 1/4 open, the reg seems to go to 2100 or so on the gauge. I've tried less than 1/4 turn on the screw and I can't seem to get the reg below 2000. Anyone else experiencing this? Is the reg screw that touchy on these guns?