Dont know the answer to the jumps question; But I have ordered a Pilot Zpx 168' and the delivery time is crazy, approz 12 - 14 weeks! So I kinda screwed up as my jumping season will be close to an end before I get my rig! Boooo ;-)
I will do a review on the Zpx when I get it, before and after a few jumps. But will have to wait untill at least May for that!
I called them about Zpx and they said the same as the above link. But they added that its self healing so if you poke a pencil though it that it will close up on its own! Also it packs about 1 size smaller than a standard z.p.
There is no difference in flying characteristics between ZP and ZPX. Only difference is that it packs about one size smaller smaller.
Generally, perhaps true. But one wonders in specific cases whether the airfoil is maintained quite as well with ZPX: Aerodyne stopped making crossbraced Sensei's with the ZPX option. Why exactly, I don't know.