I had problems with my alignment at first also. The outer edge of my muds were wearing like butter because of the stock alignment specs. So I just followed what has been posted for specs for the 3" lift (I only have the pml). It should be stock alignement for toe, 0 degrees camber, and then the caster doesnt really matter, but i think one side had to be .8 less than the other for an ideal alignment. Since then my tire have been wearing perfectly, after 9000 miles on my tires, i still have 17 out of 19/32s left.

Oh and that is bs about not getting the camber to zero. They might be worrying about getting the caster correct (which doesnt effect tire wear) and neglecting the camber, which is what they did to me at first. However, if they do have the camber bolts maxed out and you still have negative camber, you need to lower your tbars a little so you can get it to zero camber.

Hope this helps and isnt too confusing.