Everyone has their favorite tune, and the markings on the FX Impact Mk III makes it very easy to duplicate, for whatever reason. However, if you're like me, I tune it, and I leave it alone! Unfortunately, the Micro adjustment knob on the left is too easily bumped when handling the gun. I've done so, once too many times! So, I came up with a solution. Referring to the photo, you can plainly see the clip in place. The specific size is made to clip around a .25 inch shaft, so the distance between the ears is .21 inches. This is a snug fit for the grooves, which makes accidental turning impossible.
Alan
Alan