Open a history book and you'll see countless examples of people sucessfully defending themselves - even against multiple opponents - with single action six guns.
That is my point. I am not saying they are bad guns, just obsolete for a modern gunfight. In the end it is you behind carry what you want. I know how fast I can get 6 aimed shots off with my 629 VS my Super Black Hawk that is why I choose the 629 for carry. Besides, I can reload a lot faster with the 629 if I need to. The strength of the action means nothing in practical terms for SD loads. I also do not want the gun to "roll" in my grip, I want it stuck like glue so that every successive shot has the same exact grip without the need to readjust or shift my grip.