I can't decide on which to go for when I get around to obtaining the X-Squared. I don't own any X-Metal or Carbon frames as of yet as I only have a Plasma Juliet, Titanium Penny, TiO2 XX, and 24K XX. At this point I'm not sure if I'm going to get it directly from Oakley or if I want to eBay the frame so I can have a choice of lenses. I do like the Ruby/X-Metal combo as I don't have that set up yet. However, I do wonder what the Carbon frame would like like with Ruby. I'm not sure if I really like the Carbon with Black. Any advice? Moreso, do any of the stated frames have any flaws I should be aware of like prone to scratching or scuffing?