I am running about 4.00 left caster; 4.25 right caster; and 3/32" toe in. I was just surprised last week to find that going from 1/16" toe to 3/32" had a pretty noticeable influence on my car, since 3/32" is a little more than ordinarily recommended. But if it costs me a little extra wear, I don't care at this point. Also, I am thinking about biasing the caster to the right (lowering the right number or raising the left, which will cause the car to pull more towards the right) because it turns out that the freeways in the Los Angeles area are actually crowned in toward the center. Most normal alignment specs call for a higher caster number on the right, which causes the car to pull left, to make up for the "crown" designed into roads that allows water to drain off to the side. But for some reason they are now making the freeways lower in the center here in L.A., and I find the car tending to head naturally towards the center rail. So I'm thinking about adjusting a little to compensate.