Is it a good thing that I got past 100 kpa? Does it say anything about how I'm flowing air?

When you say I need a restart after each 1/4 turn do you mean I need to reset the computer once everything is adjusted and idling?

I don't doubt that the throttle shaft is worn because I can feel a slight wiggle to it but I never considered that they could be leaking vacuum because of it... shoot. I just tried swapping the TB off a '91 burb that had no play in the throttle shafts but one of the vacuum lines is different on it. What kind of a job is it to replace shaft bushings? I know one place I talked to about flow matched injectors said they would do a complete rebuild for $300 but I don't wasn't sure if I could do it myself.

I also noticed while data logging that I was throwing a "high battery voltage" code. Is that a problem?