Day 4 since trekking bar conversion. Easily one of the best things I've done w/ my bike so far. I find I ride most of the time on the sides, when cruising along, but have stretched out to the top a couple times in the wind. Reaching back to switch gears seems no less inconvenient than bar end shifters on drop bars probably is. IOW, not a big deal.
I have decided that I will probably give up my handlebar mirror. I have not mounted it on the new bars yet, though I know I could and how I would, but I think it would be in the way of my favorite hand positions on the bar. I'll probably pick up a Take a Look mirror to stick on my glasses instead and see if I can't use the Mirrycle mirror I have on the bike project I'm working on for my wife.
As promised, I'm uploading some pictures of the rig and the new handlebar setup. I tossed my new Axiom Lasalle panniers on the back, too, though I got these more for touring than for commuting. My commuting setup is still usually my Topeak EXP rack trunk w/ fold down panniers.
These were hastily shot in the basement of my apartment building just now, so apologies for any quality issues.
Enjoy!