My experience with .40's has been good. I don't think they have much recoil at all, but then my primary has been a 3" barreled .357mag. The two guns that I've used in the .40 are a Ruger KP94 and a MkIII HP. The Ruger seemed a little more brutal than the HP. The balance on a HP is just sooo sweet. I prefer the 165gr. variety. Rem Golden Saber and Winchester STX since they are most readily available in my area. The Remington seems best. I shoot American Eagle at the range followed by 40 rounds of "carry" loads. The only other auto's I have had/fired were a HEAVILY modified 1911 .45, a Ruger P90? (in .45), and my old Makrov. The 1911 was way smooth, but that is what you get when you put over $2,500 into a pistol.
YMMV
-Wheelgun
YMMV
-Wheelgun