This^^^^^^Snappy: getting hit by a switch.
Vs. my .45: getting hit by a branch
Probably not the best analogy, but the .40 seems to have a sharper recoil impulse rather than the longer "shove" of the .45.
.02
The recovery time for a follow up shot is slightly longer than with the .45ACP in a similar, or larger frame gun.
With practice it becomes a moot point.
If someone is shooting at you the difference will go totally unnoticed. Guaranteed!
Mike