I did a custom alignment from Robi-Spec. Robi flew into to FL to setup a bunch of evos and my sti. He did the setups for crawford and apr in the SCC USCC as well as entering his evo.
This is what he taught me about alignments and WRXs/STIs
Mass production alignment machines like Hunters can be off by a fair amount and nothing beats old fashion measurements. He uses a camber gauge and two custom laser straight lines for racing alignments and a measuring tape.
Rule of thumb for our cars on numbers is...zero rear toe, a hair of positive front toe to the point your are comfortable (mine is 1/8" total), as much negative camber as you can possible get in front, extra postive castor in front is good..ie ALK, and slightly less negatvie rear camber
I over answered the alignment question, but with this info, you can take it several places. I would recomend Cars and Concepts locally