I live three hours away and drove to St. Louis to buy my Cervelo. I bought it at Big Shark. They spent at leat 6 hours total fitting me. And I'm very happy. I paid the retail price but it was worth it for the fit.
I have a friend who has been fitted at both Big Shark and Maplewood and I think that he was more impressed with the computerized fitting techniques at Maplewood. Also, I don't remember seeing the brands that you mentioned at Big Shark.
"Being retired from Biking...isn't that kinda like being retired from recess?" Stephen Colbert asked of Lance Armstrong