NECK EXERSIZE joints can be found at:

San Diego: Music Trader (San Diego and North County stores), Lou's Records, Pacific Drive, AC&S, The DJ Store, Access Music, Amplified Image

Los Angeles: Stacks, Amoeba Records, Fat Beats, The Basement

San Francisco: Amoeba Records, DLX, Rasputin, Below The Surface (Burlingame)

Las Vegas : Hip Hop Site