I love the Shield. Had a 45 with RH thumb safety for a while that shot like a raped ape and wife has a 9mm. If an ambi makes an appearance I'll probably buy a half dozen safety's and new shields. Plus's for Appendix carry and single stack for pocket. Done. I think the platform is fantastic I just can't bring myself to go Appendix carry or pocket without one unless it is a DA trigger. For cripes sakes even the CSX (I have one) followed sigs lead on the P938 and has an ambi safety standard. Wish S&W offered it like they do on the regular M&P 2.0 series and EZ's. Don't even care if it is the chicklet sized one in ambi just offer the option. I know right handers world but cripes. Such a great platform except . . . . . ! Oldish man yelling at clouds rant off.