I opted to get the "regular" rxs pedals over the carbon. The weight difference between the two pedal systems is equal to a credit card and the cost didn't justify it.

I like them. Although after years of riding on looks, I find them a little tougher to get into, but they "feel" more secure than the looks. Good float range. Everything seems very good.

Good review here.

http://www.bikesportmichigan.com/fea...xspedals.shtml