Just a quick question...One of the tone knobs on my warwick fell off. Yep, fell right clean off. It made me sad. Anyways, I guess warwick knobs (it's the standard knurled chrome one) aren't push-ons, since when I put it back on it spins and spins without moving the shaft on the pot. What's the best method of putting it back on? Super Glue? I know it seems simple, but I don't want to mess it up since I'm selling it soon.