I've heard of all three, read their stuff and yet I have never seen a case where this is an issue.

I don't recall Chuck Taylor or Masaad Ayoob ever saying anything of the sort. Chuck Taylor used to teach revolver shooting and it seems unlikely that he would espouse this idea. Saying that it is a bad idea to cock a revolver first is like saying it is a bad idea to jack a round into the chamber of a 12ga... the sound alone is a deterrent.

The only time I have seen issues over procedure, ammo, etc come up are in Officer involved shootings, never once in a civilian defensive shooting case.

I discussed similar issues via email not too long ago with Dave Workman who writes for several of the gun mags and is the un-offical court reporter for several more. He has testified in numerous court cases as an expert witness and even, if I remember correctly, before Congress and yet has never had these issues raised.

The issues that get raised are shoot/no-shoot (situational and evironmental), justifiable use of force, expectation of deadly harm, alternatives to firearms etc.