A P239 is my next purchase... as soon as I decide on a caliber. Purpose is CCW personal defense. I have no experience with the .40 caliber round or the .357 Sig. I currently own a Browning HiPower in 9mm (which is fabulous) and a Colt CCO in .45. Common sense tells me the 9mm is perfectly adequate with a quality round, say Speer 124 grain Gold Dots. 9mm gives me 8 rounds in the P239. Gun will be lighter, less recoil for faster follow up shots, and 1 more round than the .357 Sig or the .40 cal versions. What are your experiences with the P239? Your thoughts and recommendations? Should I bypass the 9mm and go for the .40 or .357 Sig? Thanks