I maintain that high hitching the B&W is impossible...missing the hitch completely with the kingpin is possible if you have the trailer 3 or 4 inches above the locking jaws...or the hitching person did not look at or attempt to place the safety pin in the locking lever...
This is fact...the locking lever is self closing on the B&W. It is impossible for the kingpin to enter the locking mechanism at any height other than optimal without completely closing the locking/release lever. The handle automatically and visually rotates about 90 degrees to the closed position...if the handle does not close to a point where a little push to adjust for the locking pin is all that may be required to insert this pin, the hitch is not closed...by a large margin...use the hitch one time, correctly, and it becomes obvious that an unbroken hitch, can not be slightly mis-hitched...
Regards