i have this shock tech on off and when ever i put it on a gun and gas up at high rates or fire it seems to have problems letting anough gas into the gun
ive checked everything on the guns and its been on 2 when at highrates of fire the gun loses presure and u can hear it going back in thru the on off asif its stoping it then letting it back in some how
Might sound a bit silly, but take the On/Off off and give it a good clean out - Make sure there isn't any dirt in there or other debris that could be clogging up the valve.