Just a thought: I'm big on second opinions. Have you considered taking your car to a pro for a laser alignment to verify your readings? I use a local tire shop that measures to the 100th degree. 4 wheels - $80.
I have and will, but needed to go quick and dirty for the track day.
But I did think about going to Firestone and buying one of those lifetime alignment deals. Anyone know if they'll honor them on a race car?
BTW, I did end up finding another 1/8 degree when I loosened the nuts from he shock tower and moved it in-bound, maybe 1/2 to 1mm.