Its easy i do it on my 7. Its plenty stable, just leave like a CM left before the nut. DO NOT unwind into or past the nut.
I cut the string and grab the little tiny wrap wire with needle nose pliers and just pull until ive got enough away. its spins away real fast so watch your eyes! After that i like to have at least a wrap worth of thinned string before full wrap contacts post. Good luck!
Just order your strings so they're only wound to right after the nut...LaBella will do this and since they're handwound they can do any gauge, they regularly make up to 120 gauge for guitar & you can put in a custom order for them at BigCityStrings.