I just ran across this tonight looking for something else.
I know how that goes. I just read the thread for the first time.
What I was looking for mention of was the rear wheel alignment. I did see some mention of rear toe-in. The best alignment I got was from a street-rod shop (long since gone) and it was $200 for the front and rear. It made my Type III Notchback as nimble as a little ballerina. Gymkana racers like toe-out in back because it wants to go around corners. If you drive long distance at night, toe-out.
It's a little after-the-fact, but if there're bald spots, you might as well shave the tire round[er] because the extra tread is causing problems and will never be used anyway.