A few guys at our dirtoval are having issues with the lrp stuff. It seems they don't handle the lower wind motors very well when used in this type of racing. I think if running offroad or carpet where your off the throttle more they are fine. The speedpassion or Tekin will handle about anything you can throw at them. I use Speedpassion and It is tough as hell. I have overgeared a 3.5 to the point that the wires got so hot they came unsoldered off the speedo and still didn't hurt it !