The Star B has one advantage over the 1911 type for carry. In the 1911, in condition one, the hammer rests on the sear; the safety blocks sear movement. In the Star, the safety positively blocks the hammer.
If the 1911 is dropped on the hammer, the sear or hammer or both will be destroyed. In the Star system the hammer is pushed back off the sear, then blocked by a large internal part of the safety. A blow to the hammer won't ruin it or the sear or even harm the safety.
The grip safety of the 1911 type does not block the sear, only the trigger bow, but in the Star, there is no need to block the trigger and it can move back with the manual safety on since the hammer is drawn back from the sear.
Jim