i was wondering that also. i have only around 150 - 200 rnds and the da trigger pull seems to be about the same - the 12lbs sounds about right.
i might be able to test mine but not here.
I dry fire a bit also, but not sure if that will do much. I got some snap caps cause the manual does say not to fry fire a lot.
da is a bit heavy, but i wanted it that way for the first shot, but will see if gets less with time and more bullets.