Got a weird prob with my x valve mag

[Soopa Villain17]

well i got 7 shims in my ult , and a level ten on my x valve , i just filled up my tank wans shooting it , it was shoot nice , but then it satrted to chuff and make a sqeeking noise and i cant figure it out ?????? it was chuffin while i was shooting, is this due to 2 many shims or something ? thanks in advance

[Spacemanvic]

Try taking 1 shim out.

[Wheelman]

check your bumper, (remember that little rubber thing that is between your bolt and valve) what does it look like? remember one of the drawback to cramming too many shims in there is parts wear out faster.

[ultralightmag]

also check the shims. I had too many and one bent and did what you were talking about.