Just finished installing a Zero Glide Nut on my Chibson Angus SG, it seems to be working fine, had to replace the original pickup switch with the one from my PRS SE Custom 24 guitar, the original pickup switch decided to literally fall-apart on me, first time I noticed something was wrong was when I noticed that the SG wasn't sounding quite right, as it turned out what was wrong was that the switch wasn't switching out the neck pickup when the bridge pickup was selected so that instead of just the bridge pickup sounding in one switch position both pickups were sounding in two of the switch positions, so I took the cover off the control cavity and found that part of the pickup switch was a bit loose then the switch came apart, I tried gluing it back together with some super glue but found that the switch didn't work like it was supposed to, so I decided to replace it with the one from the PRS SE Custom 24, this fixed it.
Sometimes I think this Chibson Angus SG must have had some kind of a curse put on it after the number of things I've had to fix on it.