Hi John, Yes, Haggin typically does not use a monitor for their standard fittings, and that would be fine if you have narrowed it down to a shaft and want to compare heads, feel through turf, etc.  If you are trying to gap your clubs, want comparison spin numbers between shafts/heads, a Trackman can be useful as it will tell you comparison numbers.  If you have a choice (one of the Trackman bays are open) when you get there, go a little early and talk with your fitter about each process and see what will work best for you. Or see if you can talk with your fitter on the phone today and go over each type of fitting.   

I agree with Cathi, Trackman is a great tool to confirm performance numbers of shafts and heads to identify differences. If you are just trying to compare feel or how a club looks at address then trackman is not needed.  I typically ONLY use trackman though for all my fittings since I do both at a fitting however you might only need one aspect.   It is always worth the small cost IMHO.

Good Luck!