Ok I read all that and the most useful information was that GM had some updates back in '03 for the onboard computer and some of the Predators people had already recorded stock settings in could not be used again to reset stock settings after the dealer loaded the GM updates or the onboard computer might fry.
Also there is a website to see what what updates have been done to your truck by vin. But it doesn't work, just an error page nowadays.
http://calid.gm.com/vci/VINEntryPre.do
New question.
Can someone share their Predator settings with me?