Hello, thought of getting the Turnigy Trackstar 120A Turbo Sensored Brushless 1/12th 1/10th ESC (http://www.hobbyking.com/hobbyking/s..._10th_ESC.html) with Turnigy Trackstar 8.5T Sensored Brushless motor (http://www.hobbyking.com/hobbyking/s...or_3983KV.html) for my 1/10 2wd buggy. Is it a good combo? Also saw there are 2 types Turnigy Trackstar motor but 2 different price, any different between both other than KV rating? Thanks in advance. Cheers...