A couple of years ago I picked a used Witness .45. Mine has a polymer frame. Does not have the best sights. But I don't want anybody shooting it in my direction.
I stuck a rail mounted laser on it for grins & giggles, much better groups with the laser.
I have run both FMJ & HP with no issues.
In DA mode trigger is like shooting a DAO revolver. In SA mode trigger is decent. I don't have a guage.
IMHO, my Witness is a middle of the pack pistol. Neither the best, nor the worst.