Originally Posted by Skiddins

Other way around, more shims = less Ackerman, which means you turn the outer wheel more than with more Ackerman.

I always think of the car on full lock with the inside wheels steering knuckle against the limiter. The less Ackerman you use the more lock the outside wheel has (inside wheel remaining on full lock the whole time).

It's the outside wheel that is doing most of the steering due to the weight transfer as the car rolls.