I've got a problem that maybe somebody can help me out with. I just got an RC12L3 and can't for the life of me get it to run in a straight line. If I get it rolling slowly it goes straight, but once I give it full throttle the car wants to dart to the side.

I've tried setting the tweak according to the instruction manual, and playing with the steering trim. I did notice that if I played with the tweak screws back and forth I could get it to shoot to the left or right, but it seems impossible to get it going completely straight.

Is it normal for 1/12 cars to be this sensitive to settings? I'm so used to touring cars where even big changes hardly make much difference.

BTW I also tried playing with the diff. Counter intuitively it seemed to get worse with the diff set tighter. I thought it may be that the rear tires aren't completely the same size, but I checked them both with a dial caliper and their pretty damn close.

Thanks for the help!