The G27 does kick a bit harder than the G26, but that's to be expected....after all, it's firing a more powerful round.
There's no such thing as a free ride.
And while it does kick a little bit more, it's not painful in the least.
Nor is it difficult to shoot accurately.
The G26 can equal the G27 in energy but only when using very hot 9mm+P ammo.
And if you plan to use very hot 9mm+P ammo with any real frequency, then why not just step up to the G33?
After all, the .357Sig is essentially a super hot 9mm round...but with a G33 you would be shooting a handgun designed to take a steady diet of .357Sig.
They cycle faster than their parent design. The .40 cycles even faster than the 9mm. And the magazine has to push a heaver load of bullets upwards in this shorter time. This makes the G27 particularly prone to limpwrist. Even if you've never in your life limpwristed your other GLOCKS, the G27 might throw you an occasional curve if you get cute with it.
No, the subcompacts are not more prone to "limpwristing".
Yes, they cycle a little faster than the larger Glocks....but the engineers at Glock designed the springs to compensate.
Personally, I've never seen anyone ever "limpwrist" a subcompact Glock.