Originally Posted by teknorc

I think you're referring to the Ackerman plate. The forward hole gives more outside wheel turn, the rearward hole gives less. Lately I've been thinking of Ackerman in terms of how much extra toe out I want at full lock, or active toe out. More toe out provides more aggressive turn in and less on-power steering (rear hole). Less active toe out is smoother off-power and provides more on-power steering (forward hole). If the car is too twitchy try the forward hole. If you need a little more steering off power, try the rearward hole.

Remember to check toe and bump settings when changing the Ackerman hole.