That clears it up for this newbie. I can now make sense of Ruger's descriptions.
So if I follow you, the DC and Manual are TDA's - starting DA followed by SA, or starting from cock and fire. I can see why you prefer DC, that makes sense too.
I'm new to handguns, and don't yet know much about them. I've owned and borrowed various species of rifles - bolt, lever, semis ... now I'm looking to learn handguns.
Thanks for the post!
Ran