Regarding the quote about cocking to be more accurate at longer range, there were several cases I've ready but can't find that this became an issue in, however, by way of explanation, concealed carry is considered to be strictly defensive. In my state (MO) you have a burden to show you were in fear of grave bodily harm or even death. When shoots occur, from the general reading I've been doing, our actions are examined to see if we contributed to an escalation in the situation or if we could have walked/run away, although Florida has passed the law says you don't have to flee and can still be justified in shooting.
Anyway, If I cock a weapon with the idea of being more accurate at longer ranges that it invites a suite that claims that I should have considered breaking off the engagement.
I'll humbly concead that this is just my opion based on a lot of general reading. If we modify our weapons and lighten the trigger pull there may be someone who will sue if we shoot saying that was negligent on our part. In other words, the more we modify weapons, the greater the distance when we use deadly force, the greater the risk we run that in an real shoot someone will try to use those factors against us even if they really aren't relavent.
So I'm sorry if I came off sounding like a forum lawyer so something
but there are a lot of lawyers, prosecuting attorneys, etc. who don't like our right and are anxious to see guilt in our actions to defend ourselves so anything that could be remotely construed as anything but purely defensive might cause some risk.
I tried to find one case I read about a guy who cocked a J frame and ended up shooting a bad guy who was attempting a robbery. The guy lived and no criminal charges were brought up against the guy who shot and wounded the BG, however, the BG sued the guy for neglegence becasue of the "hair" trigger of the weapon in SA and he won a civil suit against the guy.
I've read recommendations from some folks (not authorities that I know of) to convert revolvers to double action only with factory pull weights because it contributes to the notion that we're only thinking defensive.
Personally, I believe there's risk in everything we do and if we ever do use our weapons I believe there's a very high probability we'll be involved in a civil suite if not brought up initially on criminal charges. I also am under the conviction that "perception" plays more of a role in court than it ought to be so I feel it's in our best interests to be somewhat concerned with the perception our mode of carry creates or the choices we make regarding concealed carry.
Hope this helps clarify my position and again, sorry if I came off sounding like I thought myself some type of authority.
I do stand by my modest opinion that if the shoot is righteous that I'll probably be shooting double action and that if I have some opportunity to shoot at longer distances where I'm inclined to cock so I'm more accurate in SA, then perhaps I should be retreating or taking cover if possible.
Anyway, God Bless...
Gideon