I wondered why there didn't appear to be any strings wrapped around the post. Figured they were lockers, but I'd never seen 'em before. That LSR nut sure looks interesting to me... I think I know someone with the proper equipment to cut that slot. I'm sure not gonna do it, as I like my guitar neck and fingers quite a bit.
Guitars:
Fender 2006 MIM Fender Stratocaster HSS in 3TS
Ibanez RG 570 with a bridge Invader
ESP M II Deluxe with a Tune-o-Matic bridge
Eleanor, the magical, mystical Road Worn wonder Tele
Blackstar HT Club 40