Just for Glock or do you hold the same for all your guns?
I’d say for any semi-auto. The operation works with the law of physics.
“For every action there is an equal and opposite reaction”.
There is a balance with the slide, springs and ammo that have to be maintained for it to do its job. Competition shooters spend hundreds of dollars experimenting with spring weights, making slides lighter or heavier and handloading ammo for the best accuracy and function.
I see some of these shooters in the safety area during matches tearing their pistols apart between stages at every match. I have a friend who paid about $2500.00 for a match pistol and he is constantly working on it. I asked him one day. “Why did you spend so much money on a gun that doesn’t work and you have to keep working on it?”
If I had paid that much for a gun, it better work or it’s going back.
His answer...”Because it’s a good gun and I like it”.
Meanwhile my totally stock Springfield Armory XDM 9 and Glock 21SF with some external modifications to the grip and frame just keep on running.