Camber question on lifted truck...

I lifted the truck, got an allignment and it rides great. Doesn't pull or anything. The only thing I notice is that when looking at the truck from the front, the front tires lean inwards at the top, slightly, but noticeable nonetheless...so basically it has positive camber. .5 to be exact. Reading around, it seems the concensus is to try and get 0 camber. I have LR UCA's. I am concerned that the current setting will wear the new tires quicker. If I change the camber back towards 0, or as close as possible by eyeballing it, will that screw up all the other allignment specs? .5 is within factory spec, but it just seems like it should be 0...or is .5 optimum for lifted trucks, as was stated by the mechanic...?

Thanks

 

The shop is a bit of a drive away...I set it myself before the allignment and it was about .1 according to the before specs ... Would me doing it screw up the rest of the alignment?