Someone may have already covered this but here goes. The adjuster has some groves to show changes went it is rotated. My eyes find it very hard to read as things are dark in that area of gun. Remove the adjustment nut/cover and paint each grove with whiteout or white paint. Makes it much easier to see and adjust. I’m adjusting full rotations to see how things change, there is no base reference point other than the rings on the body of the valve.
