Specialist places like Cool Clubs claim they build clubs to exact specification that's determined at their fittings. Before I head to TPI, do Titleist build clubs to the exact specs that are given at the fitting? E.g. a Dynamic Gold stiff shaft you hit at the fitting might be stiffer than a Dynamic Gold stiff shaft you actually receive in the one that's built and sent to you.
I've heard from people where they've been fitted and determined particular shaft, loft, lie specs but received something very different.