Rake angle

I have a question on the angle or rake of a grip.  What is the purpose of the extreme angle on some guns?  What does that do for shootablity as opposed to the 1911 grip angle.

My theory is the Euro type rake helps set the wrist and enhances the grip with the lower fingers.

I'm not sure exactly, but I do know that my Pardini GT-45 has less felt recoil with the same loads as compared to my 1911.

It lowers the muzzle relative to your arm, thus reducing muzzle flip. In extreme cases, like a Pardini 22, recoil is felt straight back, not up; the muzzle barely jumps. A great advantage for sustained fire.

Second, it helps to lock your wrist. Again, considering the extreme case of a Pardini 22, your wrist is bent down as far as it will go, locking it there. The sights are then staying better aligned in the wobble.

Note that the angle has to decrease with caliber/recoil. The extreme angle of a Pardini 22 would yield injuries with a .45.