Funny you should mention the 4586. To date, that is the only DAO 3rd gen pistol I've shot.
Some years ago member Stillwater788 met me at an IDPA match. He was shooting a 4586 and extolling its virtues. He loaned me that gun for a couple of weeks to try it out.
As I recall I found it to be as accurate as my 4566 and just as reliable. The problem was I didn't shoot it as fast and accurately as a 4566. I found the trigger pull to be long. Probaly related to what Arik was pointing out above. Maybe some DAO variants have a slightly different pull among the various calibers/models.
IIRC member KurtC always favored the earlier production DAO triggers over the later variants. I think he taught us that the earlier production guns had a shorter smoother pull by virtue of pre or half cocking the hammers. I hope he sees this thread and responds. What he has forgotten about the DAO guns I will never even know.
Regards 18DAI