Apple, I wear a 32FF and am short-waisted to boot, and I rotate between these two jackets at least once a week. I am indebted to Angie for turning me on to the look - I copied another busty YLF forum member's awesome denim jacket that she had recommended.
I prefer to wear a moto jacket that is nicely sculpted/fitted at the sides, has some kind of vertical seaming so that my torso doesn't look blocky, no pockets at the bust (unless, like with my denim moto jacket, it has a very flat slit pocket that doesn't add visual or physical bulk.) I usually wear the jackets open but still prefer the ability to zip them up comfortably if I need to.
I know you aren't plus size (I'm not either) but I think part of the reason that Angie mentioned that the plus-size moto jacket in the YLF store would work for any bust size is because the pockets are higher than usual, above the bust, so they wouldn't add much bulk. (Anyone who has actually worn the jacket, please correct me if I'm wrong!)