www.SocalRC.com (I take my G2R there all the time even though its a bit tight for me, so I was thinking of getting a TC to mess around with)
I'm pretty sure they enforce roar rules...everyone there that has a BL has a GTB...
BL Revo: CF G2R, LMT1940/7, 6S FP 30C Lipos, MMM, Hitec 5955TG
CRT .5: 7075 Ext Chassis, LMT1930/7, FP 25C 3S Lipos, MM