If memory serves, x-blems are 1st quality balls with a color or logo problem that causes them to not pass inspection. X-comps on the other hand are both pro pin and pro cg at the same time. I have a Cell X-comp and love it. I would say its a safe buy. It might just have like some yellow mixed in or something weird...
--------------------
Always be sincere, even when you don't mean it
The Cell Pimp