Just recently I noticed my x-valve would go full auto when it is first charged with air while the trigger is depressed. I've only run about 4 or 5 cases through it up to this point and this is the first time I've noticed this. At one point when being charged today it rapid fired a few times a dumped air into the barrel. Once I let up on the trigger and fire it it seems to start working normally, at least for the most part. While trying to see if I could get it to go full auto by holding the trigger down I did notice a slight bit of air escaping down the barrel but this stops after about half a second while the trigger is held down. Once the initial air up process is completed the only things I'm noticing are somewhat inconsistent velocities. About 60% to 70% of the shots are running between say 278fps and 290fps but a few outliers will push up to the 300fps mark or down around 260fps. I noticed a couple of dimpled paintballs in the batch I had today but I wouldn't think that paint alone would generally cause this kind of fps deviation.
I tried checking the on off assy removed and visually inspected o-rings and wiped them down. I also inspected the sear which I installed a month after I got the x-valve and it appears to be in good condition and a gap is present between the trigger and the trigger rod when gassed up. (note I played with less gap prior to the start of this problem.) I also removed the regulator seat holder and regulator seat oring wiped them down and they also appear fine upon visual inspection. After doing these things I tried putting everything back together put more oil in the system and gassed it up and in rapid fired a few times and started dumping air into the barrel. Let go of the trigger fired it once and it seemed fine. Tried holding trigger down to check for full auto and all that happens is a bit of air escapes for about 1/2 second. I should also point out that I don't have access to chrono to know if the inconsistency has issue has been effected by the actions taken so far.