So, after having done USA electronics and so on, I decided to throw a USA nut on my Tremonti SE Custom. Old nut came off easy, cleaned up the slot (gently) with 400 grit, it's perfect and flat and...the new nut rocks back and forth in the slot? Okay, fair enough. Put sandpaper in the slot and pressed the nut into it so I could sand it slightly to fit...but it won't seem to go. Has anyone else run into this? Do I just need more practice with this sort of thing? It's entirely possible. Thankfully nuts aren't expensive.