Sean,
We tested Glocks, Beretta Cougars, Smith 99, SIG 226/229, and the HK USP both standard and compact's. We shot both .357 SIG's and .40 S&W chambered models in each model, except the Smith 99 which was provided only in .40 S&W.
After careful deliberation we ended up choosing the SIG 229/226's as #1, and the HK USP , as #2. THE big revelation though was that all the Officers who shot the pistols liked the .357 SIG above the forty!! That was the concensus of opinion so we recommended the SIG's in .357 SIG as our next duty pistol. The accuracy, high velocity, flat trajectory and slick feeding ability of the bottlenecked round won us over. None of the Officers have complained about not getting a .40 S&W , at least yet. If we have a large amount unhappy with the .357 we can always buy barrels in forty for the Troopers who just have to have a forty to feel good.
The SIG's will replace 5903 Smiths that we have carried for about a dozen years now. The nines have served us well the .357 should be even better.
Frank N.