I have a .40 Shield, and am having the extended mag drop problem. I expect it to be sorted out by S&W, and expect to buy a 9mm Stormlake barrel in the future to have the best of both worlds.

However, if I had known about the .40 Shield problems, I would have waited for the 9 version instead of buying the .40. Until S&W definitely has a fix for the extended mag drop problem, it's hard to recommend the .40 Shield at this time.