Glock Gen 4 experienced shooters

[Indirect Fire]

"I did note the gen 4 double recoil spring seems to calm the recoil pulse a tad for follow ups/double taps on my son's G19."
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Ditto....boight case of a 1000rds and my gen 4 ate it up over 2 days and other than some sore fingers from reloading (big time) after a bit of a layoff, I would havr sworn I noticed the same effect. One thing about serious Glock frame shooting is you build up calluses. My were all gone and my hand hurts and is raw. (Whaaaa)
Gotta late plane to catch God Bless all.