I play in a pro cover band, and I use the unit in my Universe seven strings guitar.
My Ibanez tone knob is conical, and I have installed a push-pull knob there, to split my humbucker pickup.
So, every time a pulled out the knob, it slipped away.
So, this knob makes a terrific job at pulling out the knob, due to its rough texture.
It has a beautiful finish, I love it. The metallic finish in a guitar knob adds quality to the overall image of any instrument.
My Universe 7bk looks splendid now.