I'm way too late to the party, but here's my two cents.
I compared SH2 and TS2 on the range. Didn't have that much time with it, but what caused me to get the TS2 was:
* definitely a better trigger
* you can change out the SH2 to get closer to TS2, but it's additional work and money
* longer sight radius really helps
* I actually think I felt that the TS2 was "tighter", but maybe those were just differences between units
* I just shot the TS2 better - tighter groups
Before I bought the TS2, I was looking for a gun to shoot "freestyle" like @tdogg mentioned -> basically bullseye amateur league. In professional bullseye competitions, i.e. ISSF, guns like this won't even be accepted (caliber, fiber optic front sight) and you have to shoot one handed. In order to do the latter and hit central 10s, you really need an ergonomic grip. But I digress. In my humble opinion (and that's really subjective), the TS2 is the sweet spot for that kind of shooting. If you don't want to buy a typical bullseye gun or spend thousand of dollars more on a custom 1911/2011, this is the best gun for an amateur bullseye shooting (and of course you can participate in IPSC Standard with it). It's not that pricey compared to other ones, for just a target shooting it's better than the SH2. And it's a CZ!
As for the accuracy - I don't think that there's much difference. I would give the edge to TS2, but nothing to write home about. The best accuracy measure is: "how well can you shoot that particular gun".