Limp wristing [written in non-technical terms]:
When the handgun fires, the slide uses the explosion from the gunpowder to move backwards, and as the slide moves backwards, the spent casing is ejected from the barrel. The slide then moves forwards to pick up a new round from the magazine and lift it up and forward into the barrel.
If the grip is not stiff, then the movement of the slide back and forwards is not crisp, causing the slide to have problems carrying out its two main functions [ejecting spent casing; inserting new round].
I have never had a problem with one hand shooting; and one hand shooting is very common among target shooters. One just needs to have a firm, not crazy tight, just firm, grip.
Ever shake hands with someone who has a limp grip? That’s the type of grip that will cause problems.
Ignore my attempt at an explanation; and just refer to the wiki site from post 26!
That was a very very good description you gave. Easy to follow. Thanks for posting!