If your going to run a motor lower than 8.5 BL or 27t brushed then get the GTB. The GTB also has less resistence but isnt very noticeable. I am getting the GTB just because I have a bunch of <27 turn brushed motors.
Losi 8ight 1.5 ~ 8T ~ XXX Buggy ~ Mini-Baja
The o''le saying goes, pay me now, or pay me later, because you gonna pay me. "Pearl_414"