Between your posts I reread, and learned some stuff, but not enough! lol. What I trying to discern is 'the kit" an upgrade in handling improvement over my stock FE3 GXP , or less? If it's better than my stock FE3 GXP (LNF), but below a ZOK LNF package, that's okay. But if it's less than what I have stock, then I would consider aftermarket stuff and just retain all my stock stuff.Note that the Z0K on a base model is different than the Z0K on a GXP.
See the table in message #1 of this thread.
When the base Z0K was brought out, the GXP had not been introduced yet.