I gotta admit I'm totally confused too. I think I have a spare in the shop that I'm going to have to take a look at. I had no idea there was any adjustment, I thought it was an on-off switch ... and I always wondered why it was so complicate for an on-off switch
Recently while still doing final shakedown of the car after being off the road for 40 years I did notice the kick-down required the pedal to the floor, which it never did before .. but of course I pulled the current switch off a 2bbl lemans and never "adjusted" anything, and probably worked it back and forth numerous times before installing it in the GTO.