Regarding ackerman I was also wondering if changes in the track width via the FR blocks changes ackerman?
I was never really good a geometry but it would seem that the longer steering arms from the track width would change the ackerman angle..
With my setup it seemed the bigger the block eg a 1.0 or 1.5 FR block.. then the less ackerman shims you needed to be like the 4mm ackerman with standard FR blocks.. Anyone else find this...