I don't own the PM2 but the ZT will be far more robust, (especially at the tip)...but not nearly the slicer.
(I've sort of hankered for a PM2 but I haven't carried any of my Spyderco's recently. I still have a virgin Military in 440V, and a nice Calypso Jr (one of my favorite models) in ZDP-189 among sundry others.) I gave away my other Calypso Jrs to folks who admired 'em.