The black speed knobs are very shallow and they ride high on the split shaft , giving it a mushroom look. It should sit much closer to the body of the guitar. The hole cannot be deepened, as it would show through the clear of the knob. Clear portion of the knobs were a bit scratched and one was a little cloudy.
Still, it goes to 11, and according to Nigel Tufnel, that's one louder.