Originally Posted by Cpt.America

If you are on a very loose track and are searching for rear end stability, the 4.0 LRC (stock) toe block is the one to use. You ask what you would notice going form the lrc to the hrc... your immediate difference would be a slightly looser rear end due to less roll at the rear of the car.

Anti-squat, combined with front droop, affect how much traction you develop at the rear of the car ON-throttle. So if the rear end of your car is loose when getting back on the throttle at the end of a corner, drop your antiquat closer to 0, and add a little droop in the front (remove limiters, un-turn shock eyelets). Also, run a larger spur gear to push the motor farther back.