The B and BD are the EXACT same gun, except for the safety differences. This person was probably comparing the BD to the pre-B. The B models generally have a poorer trigger than a pre-B, due to the former's firing pin block mechanism.
CZ-UB has a pre-release regimen that "breaks in" the gun for you, to some extent. They have a device that dry fires and cycles the gun about a thousand times in a bath of oil. Some do a little better than others (probably due to which machine was used). They all smooth out pretty well with use.
CZ-UB has a pre-release regimen that "breaks in" the gun for you, to some extent. They have a device that dry fires and cycles the gun about a thousand times in a bath of oil. Some do a little better than others (probably due to which machine was used). They all smooth out pretty well with use.