I have K-wings that I bought in 2006. I used them for about a year in Hawaii and then put them away for some alloy deda bars that I could clamp aero bars to for the occassional TT. I really liked the shape of the K-wings, especially with campy levers. Fast forward seven years to last month. My Argonaut had 3T 44cm ergosum bars but it never felt right, my shoulders felt hunched up. They were 44 C-C at the drops, but around 41 cm at the hoods. The only spare set of oversized bars in 44cm I had were the K-wings so they're on the Argonaut. I didn't route the cables through the bars, they run underneath the flat section. I also taped them all the way up instead of stopping at the bends. They feel nice with the 11 speed levers. If they made an alloy version, I'd get it.
If you're keeping score, the Argonaut has a steel frame, steel fork, carbon bars, Thomson seatpost, and titanium rear dropouts.