I would talk to someone there to confirm before I spent the money but,for a Charvel you would want w/o holes as they are screwed through the front of the locking nut. You don't see to many with holes through the back anymore.They were prone to cracks there LSR is a fender roller nut I believe. So if you have a Floyd locking nut you would not want that. same goes for the nut choice. You would be using a Floyd locking nut so I guess it would be none.