Food for thought: trigger pull and gun weight

I was reading Peter Lester’s “ Shooter’s Guide To Handgun Marksmanship” and came across something that made sense to me but never thought about
To paraphrase, pressing the  trigger results in energy input into the pistol. A pistol weighing 2.5 pounds will react with movement to the force of a 4 pound trigger. 

After reading thar statement, it made more sense to me that firm grip is needed to counteract the trigger pull than it does to the concept of the grip countering the recoil. 

This does not change the overall shot process in my mind, but gives me another perspective of why it matters

The US Army Marksmanship Unit manual says to grip with only the 2nd and 3rd fingers, grip so tightly that your hand starts to shake and relax just enough to stop shaking, use first joint of trigger finger. I found this advice valuable especially for 45ACP but simply applied it to all my shooting so i only had one grip to learn.

Gripping hard is not enough, or a solution in and of itself.

Grip the same and pull the trigger straight.   If you grip with the same amount and directions of force every shot, you’ll still shoot a nice group.  Consistency is more important than dominating or counteracting every force you input into the pistol.

A nice firm grip helps lock the wrist muscles, which ensures good function of the pistol.  A firm grip with a solid stance also helps build efficient recoil recovery into your sustained fire.  It has benefits.  But the grip forces come mostly from fingers pulling back on the frontstrap (in the same vector as the trigger pull) so I don’t think “counteracting” is a fair description of the inputs.  

Another point to consider is the way 1911 triggers work.  The 4 lb break doesn’t release completely to “zero” between sear tripping off the hammer hooks and the trigger hitting the overtravel stop.  The sear spring is pushing against the trigger bow with some amount of constant pressure through and after the trigger break.  Depending on how your trigger is tuned, there’s always 1-1.5 pounds of spring pressure acting as a brake against your 4 lb input.  Just another mitigating factor in the “4 lb force against 2.5 lb held object” concern.