Ergonomics and handguns are so much about personal preference.
Grips, sights and triggers are huge.
And then barrels, in my experience, have proved to be unique in what manufacturer, type and weight of ammo they prefer.
It's a fun journey.
But a journey we must make ourselves

Oh BTW I never warmed up to my P30 40 LEM till I changed the grip panels to small on the sides and large on the back.
That proved to be the sweet spot for me.
P2000 the extra large back strap and P2000SK the large.
Also for some reason I really shoot well with XS Big Dots on those guns.

For what it's worth...