I also have a S&W MP Shield in .40 and .45 and BOTH have a thumb safety???Thanks for all the suggestions. My questions now are....I have several pistols, all but my Taurus (not a Taurus fan, it is a warranty replacement G2) do not have a safety, which is what I like. I would like advice as to use the Taurus which is my current plan) to get used to CC for a while since it has the manual safety. My .40 S/W shield will eventually be my daily CC.