There are actually some benefits to heavy triggers.
While everyone seems to go towards the lightest trigger they can manage, let me state another perspective.
Anyone who has ever fired a free pistol, or olympic quality air pistol, knows that even a light trigger on the scale can feel like a thousand pounds in competition. It's called chicken finger!
That's when one is psychologically afraid of pulling the trigger, and the lighter the trigger, the more likely that is to happen. Like freezing on the shot, and at that point the trigger feels like a ton. Because with a light trigger you will have less distinction of the break. Remember the old adage that fine muscle control goes out the window when nervous or scared or adrenaline dump and yes, that can happen in the heat of competition, no matter what the type, even the slow fire at the long line at 50 yards.
So with a heavier trigger one is able to do the pre-press with more confidence, not afraid that it will go off, not have to hold back so much and can concentrate on the press and just let the break happen.
And remember that all triggers break at a fraction of an ounce. How's that?
Because the weight is the press, but the break happens at some point in the press, so no matter if the takeup press is 2 pounds or 12 pounds, the break happens somewhere between 2 pounds to 2.01 pounds or 12 to 12.01 pounds.