Hey I played with my new ule rt pro with x-valve and y-grip today and it was working pretty good. I'm currently running the shortest spring with 2 shims and I think the 2.0 carrier? Well it was kinda weird because if I just slightly turned in the field strip screw the gun would go full auto and if I turned it in too far it would leak out of the barrel but I found a spot where it didnt leak and I played that way for the rest of the time. Do I need to go to a diffrent carrier? If so please let me know which one and how it looks.