I'll throw it out there, though striker-fired is probably not on your radar. P99C is smaller (overall), lighter, striker-fired, decocker, but unfortunately you don't gain anything on width and it's double-stack. If they had a similar decocker on the PPS (single-stack; 1" width; 6-8 rounds), I'd buy one in a heartbeat and it would seem to fit your criteria. As is, though (i.e., no decocker), the PPS (or PPS M2) is not a bad carry piece. [I have both the 99C and the PPS M2, and enjoy both; and they're pretty good shooters as well :-)]
FWIW.