You have to give the late guitar legend Stevie Ray Vaughan's rhythm section credit for perseverance. Mitch Mitchell and Noel Redding, the rhythm section of the Jimi Hendrix Experience, never took it upon themselves to continue as a recording entity after their leader's passing. Of course, Double Trouble is buoyed on BEEN A LONG TIME by a host of famous friends who offer impassioned performances to occupy Vaughan's vacated frontman spot.