Shortest SA reset is achieved by deleting the firing pin block and using a flat SAO trigger with pre and post travel screws. This path will also save a little money as the only required parts are trigger, floating trigger pin, reduced power trigger return spring, sear delete spacer. Add the race hammer and 1 HPIN if you want a nice crisp break. It may not equal a good 1911 trigger, but it will be close. Up to the owner if they are comfortable deleting the fpb, but that is the only way to achieve the shortest travel with a B model CZ.