I love them.
1) my first true fitted set. I booked an appointment w Titleist fitter at our course, hit off grass outside with trackman, got into a few shafts. He started me with a T300 but after 1 shot (which went amazing) I asked "what about a T2/T1 combo?" And he was on board. Though we based it off hitting a t200 7i. I did get to try the T100 PW and hit it just fine.
2) the T100 are bent 1° strong to blend with the T200. Through email I inquired about T100-s, because the lofts are closer to T200 than T100 and the fitter said something about the tungsten weighting I didn't quite understand, but I trusted him. It worked out. My gaps are right on. The only drawback is that the soles now have 1° less bounce, and the T100 soles are stupid-thin to begin with. For this test, I had signed up for t150. I was super torn between T150 and T200. I would totally recommend trying T200/T150 split set if it's anything like what I have now.