After seeing a full comprehensive fitting earlier this year with a close friend (I got to attend and watch the whole thing - 2 sessions) here is what I observed:
1. Fitter should ask what you are hoping to accomplish, goals, etc.
2. You hit your own gear to get a baseline. Data captured
3. Fitter might ask what you have in mind as far as brand, model.
4. You hit those if available. Based on Trackman data fitter will throw different shafts in there.
5. Fitter might then branch out to different brands, designs, etc based on what is happening with shot shapes, patterns, data.
6. You and fitter start to narrow it down on data and likes.
7. Fitter can measure anything but feel. If feel isnt important to you, go data and results over sexy and shiny.
8. If feel is super important to you, Then be prepared to sacrifice if best feel doesnt = best data and performance.
My close friend isnt big on feel and went with best data for their fitting. He is very analytical, and data driven in real life.
G luck sir.