Josh originally played a black and white Gibson which was stolen. He later played
Martin 0021's (twelve fret model with a channeled head).

He had a kind of bursitis from playing extra ordinarily hard with his right hand grasping the strings so much so that at an end of many a concert, his fingers would be bleeding.

He is the only performer I knew of that could change a string (if it broke) in the middle of a song performance without missing a beat.

He never used a guitar strap much but planted his right foot on a chair and leaned toward
the audience in an intimate way.