The issue is that I paid for a lifetime alignment and it turns out they only have the toe specs. The camber was acceptable but the caster was left 4 degrees different from side to side. Oh and I was banned from the store after I had a discrepancy with my service.
Ugh...
That I can pretty much guarantee you that is due to incompetence. I've seen it myself over & over & over & ov....
Alignment guy hasn't figured how to adjust the camber/caster bushings (or is plain lazy) to know that you more often than not have to swap them out with ones of a different degree to get the caster & camber alignment correct.
I suspect it partly comes from a lack of proper training, so it might not be completely entirely the tech's fault, however someone working in such a field should at least have some sense of reasoning and ability to figure things out, which it sounds like the guy you went to may not be too sharp in that department.
IMO, they should definitely at minimum refund you the money you paid if they cannot figure out how to do it.
Most suspension lift companies suggest using the factory alignment specs, so yeah you're probably fine there.
Edit:
If you're thinking of trying it yourself, this page should give you some guidance. The numbers themselves are not too real critical, mostly you're just trying to get both tires parallel with each other (toe) and perpendicular to the road (camber). Caster controls return-to-center, and whatever setting allows the truck to track straight down a level (not cambered) road is generally fine (caster doesn't affect tire wear).
http://www.therangerstation.com/Magazine/winter2008/steering_tech.htm