So I started to take measurements today and quickly realized that the only great consistent point to take measurements from would be the rotors with the calipers off. Going all the way out to tread is inconsistent unless you have fresh rubber and even then there is plenty of room for error. Then my brain really started to think that I could never formulate an equation to match the growth going from the diameter of the rotor to the tire. 1/16” at the rotor might equal 1/2” at the tire. I hope you guys are following what I’m saying.we always set ours up toe’d in 1/8th of an inch
I have an acquaintance who does alignments in the next town over and I’ll have to lean on him for some wisdom.