This post was inspired by the picture of Jim in the wind tunnel, but I've put it here because handlebars seem to be a topic of enduring interest. I've been riding Midge On-Ones and have been very happy with them (thanks Ratz). After seeing that pic of Jim, I wanted a solution that got my hands and arms more inboard, preferably in the "aerodynamic shadow" of my feet and legs, but not as extreme as Larry's "suicide" bars. I got a handlebar that is only 36cm wide c-c, installed it upside down, far enough back so that the bar and brifters don't interfere with my legs.
The first ride was a bit wobbly... proof that I've been pulling on the bars to steer, rather than the ideal of pushing sideways. It was windy and I felt like I was taking it rather easy... but rode an average time for my normal route. So there my be some aero advantage. The ergo shape of the bars put the levers too close to the bend, and the reach put the brifters above my knees. If I pursue this solution further I'll be looking for bars with a classic "round" bend, 34-36cm wide, with a bit shorter reach.