I just ordered a 2.0 Shield 40 yesterday (will be here Monday). The reason I went with 2.0 over the 1.0 was because of the "improved" trigger and relocation of the trigger stop. I own a G43 (fine gun). The reason I bought a Shield was I wanted a single stack .357 Sig. The aftermarket barrel (Remsport) will be here Monday. Just got tired of waiting for Austria to bring out a singlestack .357 Sig. We'll see how it goes.