I have always puzzled over the fixation with the hinge pin since the only thing unique about it is its easy visibility. There are long actions and short actions, and the hinge pin doesn't do a thing to define where you put either of your hands. Neither does the front of the trigger guard, for that matter. The trigger itself, yes, but that's just half the equation. Then you to just figure that the shooter places his other hand a comfortable distance out under the barrels, hinge pin be damned.