For those that don't have a B&W do your pull test! I used to with the RBW I had. When you actually use a B&W and look at the simplicity of the latching system and the thick wrap around jaws you will understand the only test you need to do is with your EYES. Yes that is a TEST.
Back under get out and close the latching arm and LOCK it. Now LOOK to see if the hitch and kingpin plates are touching. Now LOOK to see if the 1" thick bright silver jaws are wrapped around the kingpin. That is the ONLY test needed with a B&W.
Ok flame on B&W critics!