I'm with Jim and Don. I like them both and have guns in both straight and pistol/POW. If you haven't shot a straight grip, you should before you decide. I never notice a difference when shooting because I'm concentrating on the shot not the grip. I do like a straight grip a little more for a hunting gun but feel there may be something to the 'added control' of a full pistol grip in deference to the experience of the target shooting experts. I have known many people that won't give a straight grip a chance and have such a predjudice against them that they miss targets when trying my straight grips even though they fit the gun otherwise and are good shots. I also met someone that couldn't comfortably position his wrist on a straight grip. His wrist simply didn't bend in the way needed to shoot a straight grip well. Possibly an old injury prevented his full wrist movement.

BTW, I had a 12g Citori straight grip that I loved for upland.

This is like asking if you should get bucket seats or a bench seat in your new truck.