Ok, I was FINALY able to get an xvalve and I dropped it into my Pnue-mag (which I finally worked out) but it only fires every other time. the rest it chuffs. I backed off all the stops and re did them. I even pulled out the xvalve and tried it in the other mags I have and it worked.
it wont even shoot correctly slowly. at 1 bps still does the same thing.