The reason you don't see that many Bay mixes is Bay artists for the most part only put out their shit on CD. No promo or full-length vinyl. East coast and west coast hip hop artists understand the importance of the DJ/vinyl scene and do. That's the numer 1 reason. Most bay artists just disregard the DJ scene out the gate and later complain how come no DJs support west coast? Well, how you expect DJs to play your shit if you only have full length CDs? To most Hip-Hop DJs to mix CDs is sacrileges. And when they do release shit on vinyl its usually very slow (BPM). A lot of the hip hop artists that you might not even heard of have been consistantly selling 15,000 + vinyl singles just on the stregth of the DJ scene. Shit groups like Hiero, Souls, Defari, Dilated Peoples, Zion I make good livings strictly off of the vinyl scene.