Zonie said:
The loading lever dropping is a historic part of the Walker. It was one of the major problems with the originals and was one of the first things that was changed when the 1st model Dragoon pistol was designed.
If one is aware of this it only takes a second to push it back up in place before cocking for the next shot.
Thirty five years ago I was introduced to "The Walker Slap" by a wonderful place called Deep River Armory in Houston.
Seemed that some people wouldn't have one if you gave it to them and some loved them, hunted deer with them and generally reveled in new and inventive ways to keep their pants up.