I've been studying how my favorite gypsy jazz guitarists play. John Jorgenson is one of them.
John picks differently than the gypsies do. At least it appears that way.
Check out 40 seconds in to this vid where he really gets cooking.
When John plays fast runs, he straightens his wrist out and uses his arm motion to pick the notes.
Do you guys know if he still uses the rest stroke technique when doing that?