Originally Posted by robk

Ok I did run the X drive GTB2 today back to back with an already approved esc. My first 2 batteries were with the control esc to establish a baseline for lap time. Both packs, the fast lap was 9.8 seconds, with many 10.0 and 9.9 laps. Once I had the X drive soldered in and programmed with settings I used with my original GTB2, I was able to do 9.9 for a hot lap multiple times and a bunch of 10.0 laps as well. There was no change to the car except the ESC. The biggest difference seemed to be in the feel of the trigger. It was very smooth, and felt like more "resolution". I thought that was great, but the lap times did not seem to be much different at all. As far as i can tell, there is no difference in speed with this controller. It will be added to the approved list.