Sorry about that rather undescriptive title. I'm not too good at coming up with titles. I'm having an octave 10-string (doubled five) bass built, and the octave strings will tune at the bridge. I was wondering how to anchor the ball end of the octave strings at the headstock, and thought that I could get inspiration/actual parts from headless designs, the kind that use the double ball end. I know Steingergers have holes that the balls go in, and I don't think that's an option. In what other ways do headless basses anchor the ball end? I thought I read that some basses/guitars have a post that the ball slides onto. Any thoughts?