If there's a swing out there I could have as my own, it would be Louis Oustheizen ... however the hell you spell it.
With that swing and that putting stroke, I never understood how he doesn't win more.
I don't know anything about the place you were fitted at, but the fact they have Track Man would suggest they're qualified overall. When I was fitted last spring, I went in with zero preference for which irons I'd get. The guy tried a LOT of head and shaft combinations. Going into the fitting, I assumed he'd recommend Ping G20's or something along those lines due to maximum forgiveness. Ultimately, I was most consistent with the AP1's (with Dynamic Golf S300 shafts),...
Anywhere around the green and inside of 80 yards, I nearly always use my 54* ... probably 75%-80% of the time.
If I'm short-sided and need to hit a flop, I'll grab my 58*.
Or if it's an occassional long bump and run, I'll use my 50*.
I expect this could vary from player to player, but since putting a gap wedge in the bag (50*), I use it more than my most lofted wedge (58*). I trust the gap wedge will do you some good -- not only 100 yard range but also around the greens.