I just received my order for the new carbon fiber X8 and here are my thoughts:
Pros:
Carbon fiber looks cool from afar.
Lightweight
64 RG
sharp blades
smooth cut
Cons:
from up-close, the carbon fiber looks painted on
not as comfortable in my hands as my Palio, feels kind of flimsy
tracks dont feel as sturdy as my Palio
Overall:
Even though I admit that I am a fan of Xikar, the X8 does not compare to my Palio. While the X8 is a good cutter in itself, it falls short of the Palio tenfold. And while I did not pay a lot ($18) for the X8, IMO, the extra $10-15is worth it for the Palio.
Disclosure: I have no vested interest in either Xikar or Palio companies.