When you say a green PC z-force are you talking about one with a foil stamp on it? The sparkle one's i'm talking about don't have the PC stamp, just the ghost Disctaft bar stamp. Got them in the late spring or early summer. I found those to fly pretty similar to non domey ESP Forces.
The Z-Forces sent to me mid summer have the small production stamp near the rim....just like any regular elite Z disc from Discraft except they have no raised letters underneath(1st run indication). I'm just now getting around to testing these, and i probably shouldn't have in the middle of the round.
My first throw with it(RHBH), it didn't even go 2/3 of the way as expected. Major hog leg!!!! I'm not going to even mention how my second throw(RHFH) with a decent tail wind went.
I don't think the colors will matter on these. The dark blue ones feel just like the red ones.