I think you are right about these things being tough TRF512
Any way the drag version is now in a new stage of development with the car being converted from 4WD to rear wheel drive. It all looks good so far and i am looking forward to seeing how the thing drives. I am not expecting too much in the way of steering but it does only have to hold a straight line. I just wish i was able to upload some video of it when it gets going but i don't have the software to do it......