Possible Problem with Back Half of valve

[Demobilized]

Whenever I screw in the back half of my RT valve and then try to adjust the velocity it will first give a little and screw in the direction of which i try to turn the velocity. I have the valve in their pretty tight but this problem still occurs. I dunno if this even matters but ive got a tourny this weekend and dont wanna find out then haha. Thanks

[cgrieves]

If you mean the regulator (back) section of the valve rotates when you turn the velocity adjuster, don't worry. There should be a little pin on the bottom of the valve which locates in a groove in the rail underneath. This should stop it from rotating more than a few degrees when the valve is in the gun.