Berger and Prescott along with Boyer and Cookie. Russ T Nailz was on 91X. IIRC, sometime later that year or maybe in '92, Berger and Prescott defected to 91X with Russ T. Nailz producing. KGB hired Dave and Shelly at that point, (I think from the now defunct Kiss in San Antonio?). Back then the show was called "The Dawn Patrol." When they left for Rock 102.1, I believe KGB kept the "The Dawn Patrol" name as intelectual property. By the time they ended up back on KGB (after moving to 105.3 with the rest of ROCK 102.1), they just kept on calling themselves the DSC.
Also, there was an interesting story with Berger and Prescott, who were so unhappy with their short experience on 91X, they agreed to work over on XTRA AM until their contract was up. That was pretty much the end of their morning run.