Shooters became familier with the strong positive lock up of the Colt system. It was and is easy for a Colt SAA to be slowly cocked and listen to the 4 clicks which idicates the firearm is working properly.
The addition of modern transfer bar saftey devices has voided this "Cocking" check.
To a someone who learned the traditional Colt system it is a loss. It would be to a Colt man like owning a watch dog that cannot bark!!