With 9mm, I can pretty much mag dump and get all my shots in the vitals at 21ft. With 45 it's a lot more deliberate. With 40 I just think what a stupid caliber it is.[/QUOTE]
If that is how you feel about 40, you must think the 10mm and magnum revolver guys are plum crazy.
Seriously it all depends on practice and pistol selection. With an M9 it is easy to pop off 9mm quickly with pretty good accuracy. A lot harder to do with a baby G26 in 9 or G36 in 45. Try 40 in a G20 - I have found you can run these off very quickly like a 9mm. Heavy slide damps recoil very nicely. That said, I don't choose them for SD loads.