I am a little confused on the cz75b, I thouhgt the 75b is a traditional DA/SA, that is after racking the slide and a round is chambered the trigger comes back to a fully uncocked position. is this true or does it came to a half cocked position? I am looking at the CZ website and interested in the 75b does it worked like let's say the Ruger P89 with a safety? your information would be helpfull for my next purchase.