Call CZ Custom and give them a chance to make their pitch. Since it is a custom built pistol based on the 75B design, it should be a 2" at 50 yards gun. Even a 75B with a tight barrel bushing is typically good for that. CZ Custom is a great company and they have many very happy customers. If you want 9mm and the 75B frame size design, the A01 looks like a good choice to me. I don't have one, however. Perhaps just ask CZ Custom for their recommendation based on your needs.
I shot bullseye matches with a 97B with a CGW bushing and sometimes shot matches with the 75B, but preferred the heavier and softer shooting 97B for bullseye.
Joe L