It seems if you are talking competition use, almost no gun, other than something built specifically for competition use, would not require trigger work for optimum performance.
Remember that factory triggers are created with balance in mind. They are walking a tight rope between "shootability" and law suits arising from accidental discharges. When you go and get a trigger job done the responsibility falls on your head, so you have a lot more options. There are also some economic constraints with regards to how much hand polishing and finishing of parts would cost to give the smoothest pull.
I carry various handguns as a concealed weapons permit holder. I don't see it being adviseable to carry a loaded DA revolver or Semi Auto (especially one with no safety)with a target weight trigger. The long pull and weight are effectively the safety. Although "brandishing a weapon" is frowned on, I also don't want a gun that might go off too easily in a SD situation, if it reverted quickly back to a situation where I felt I was not justified in firing. Under stress how often do you hear "it just went off". Many would advise against ever cocking a DA revolver to fire SA in such circumstances.
Target shooting and hunting guns can be set up very differently, as they are only fired at a certain place and time, but factory guns will always have an "attorneys" trigger pull.
And finally to stay on topic, regarless of the trigger pull, I don't want Target Gray
