Originally posted by gabriel_bc The Pz-1 / Pz1-p has a faster shutter (1/8000) than the MZ-S (1/6000). The MZ-S also seems to share the same dreaded plastic mirror gear that is the achilles heel of the MZ / ZX series, though there are less reports of failed MZ-S cameras than the more common MZ bodies.
I stand corrected
The jury's out on if there is the plastic mirror gear or not on the MZ-S.
That said, an MZ-S just feels better built than a Pz-series camera. It's built more like current Pentax DSLRs.
More on topic, the KX is arguably the best K-series camera (K2 DMD maybe being superior, but also fairly rare), and the only real quirk is that requires the advance lever partially cocked to activate the light meter.