I just started using them a couple of weeks ago and am pretty happy with them. The problem is that BXT didn't design them for internal wiring. It's like they threw in some random holes without thinking about utility and design. You'll have to overlook the zip-ties in the pictures; I'm still ironing out some cockpit issues (headset and stem length) and am not ready to commit to bar tape. And forgive the ugly hotel carpet. Oh, and the wind really whistles through those holes. If I'm not using the aerobars, I wrap them with electrical tape as a quick fix, but I've been thinking about using Di2 hole plugs, though that might not look so pretty. I'll figure that out when I wrap the bars.