Well, I finished tabbing Bach's prelude to partita no.3 a few days ago. I went through about 50 different hand positions for this one part and it all seemed hopeless. then i stumbled on a strange move (using a few open strings, then a slide from 5th fret to 13th, and a hand stretch from the 7th to 13th fret) and I was able to bring it up to the proper speed. Still have some cleaning up to do, hell it's a weird rhythm, timing and such for the speed. So I'm happy for now!
My first success at it: