Ultimmer makes a very good point
It does seem pretty inconsistent to give up the CCW, then play smart aleck when the obvious next question is asked. If you're trying to get the stop off to a good start, you just shot yourself in the foot (pun intended).
In my opinion, (which is given freely and therefore worth every penny) there shouldn't be any question who is in charge of the traffic stop. Obviously, it is the LEO. I think providing the CCW, and advising the officer where my gun is located when he/she asks and asking them how they want tpo proceed (don't use the word gun - weapon, sidearm, or "it" are all better - see the prior post regarding Massad Ayoob's advice re: rookie cops hearing the word gun), is sensible and logical. It tells the LEO that you are law-abiding, cooperative, that you are letting them control the encounter, and that you are not a threat to them. Since i carry a pistol nearly all the time, this is just my solution to avoiding all the negatives that could develop if the officer sees my pistol accidentally (very bad, unless you like the taste of asphalt or lead), or (bad, but not as bad) runs my DL and learns about the CCW i didn't mention to them.
No, in CT advising the officer is not required. No, they really don't "need" to know. No, i am no threat to them. However, i also realize how nasty their job can be; nearly everyone has read of a LEO being shot and killed during a traffic stop. Every time they approach a car, the question is running somewhere in their mind - is this the guy who's going to blow me away? - so i feel that advising can help take the edge off that. From a practical perspective, it may save me a ticket or maybe not. But from a logical perspective, and from posts made by current and former LEOs, it is reasonable to expect that a potential cop-killer will conceal and not advise, where a law-abiding citizen who advises is likely not a cop-killer. If you can remove that concern from the LEO's head up front, why not do so?
That's my .02. Others raise good points about staying concealed, which i respect. I just don't happen to agree with them.