PFF doesn't seem to be part of the pattern I've observed. as to the farm/nerf theory, I'm using a lvl 44 toon and fighting lvl 41-46 Fakes, so not sure that fits?
I've found no pattern whatsoever. I have the inconsistency in mish, in PI, with PFF used, without PFF. I will go give FBZ a try.
bugged it for whatever that's worth