Not CZ related, but I was just shooting both my SD40VE and my SD9VE yesterday. These are light guns CZ75B, but have a large comfortable grip and a full 4" barrel length.The .40 obviously has more recoil. I didn't like it because of how it recoiled, not how much. IMO 9mm recoil is like a pop, .40 is like an abrupt yank upwards.
After bunch of shooting, I will probably keep the 9mm and try to trade the 40.