I think I was a bit too blahzey to start with, careful markup then drove in a bit too hard, thinking it can't be that hard. No No patience is a virtue when it comes to this sort of thing, and of course the correct tools go a long way. Not to worry my TUSQ nuts have turned up, pre slotted and looks to have a nice angle for seating the strings and of course 2 blanks in the "maybe try again bucket". All god thanks again Simon.