Jeff's black guitar is a les paul studio with some stickers on it. It also has a bigsby tremelo. I saw him use it last year in mississippi for hell is chrome. I couldn't figure out why he used it, it couldn't have been the bigsby, because I have seen several telecasters through the years with them (both during jay and after). The only thing I can think of is the humbuckers. That is something that you never really saw onstage with Jeff and Nels. Most of their guitar have some sort of Fender lineage that includes singe coils and P-90's (except for Jeffs love of SG's). The Les Paul Studio