Go spend 20 bucks and get a center shot tool a square and a book and learn how to do this yourself. The proshop guys know their way of tuning but it maybe leaving you short of tuned. The guys at my local shop are the nicest guys around and will spend plenty time shooting the sh*t but they eyeball everything! Thats looks close, thighten the screws and send you off. There isn't much to it and if something goes wrong in the field that guy isn't going to be there for you is he?

It isn't really yours until you take it apart and put it back together again!