Lol! Clunky is just the first word that came to mind. Clunky= You can feel the slide when it stops on recoil, and when it goes back into battery, kinda like it's moving slow enough to distinctly feel the stops. Felt nothing like my P226. However, at any rate I think I got to the bottom of it, when I took it apart when I got it home I wiped it down, and didn't put any grease on the slide rails and left it dry. I've got her lubed up, and will try it out tomorrow to see if that was/is my problem. Pistol shoots well, and didn't have any malfunctions, so I'm hoping that leaving it fairly dry was what is causing the "Clunkiness".
On the bright side you now know my definition of "Clunky"!