So whats the best combo, light and strong, like a Thompson X4 stem and 31.8 carbon bars, or shine the carbon bars and go Aluminum like Answer Pro-tapers. What do you guy's think about the 31.8 bars, worth it or not? Does the 31.8 have a real advantage over the standard stuff? There's still some 25.4 stems and bars out there but it looks like the 31.8 is going to take over someday, there's more new 31.8 stems coming out than new 25.4 stems, and it looks like the bars are starting trickle in.