Went and shot the p938 today. Put 300 or so rounds through it with 0 FTF and 0 FTE. All in all it performed just as I would expect a Sig to. Pretty happy with it.
100% comfortable with it as a carry weapon for the wife. She happens to be left handed so if she isn't carrying I can carry it on my left as a bug :-).
What ammo did you run through it? I've been holding off for a 9mm Shield, but I might have to just go with the 938 since they are more readily available.