Ok, so, today I got my Mercier Kilo TT, put it together, and took it for a spin. I hate the handlebars that come with it. I bought a 60cm bike, and the bars are somewhere between 40-42cm. I understand they're trying to capture the "track bike" feel, but most people that I know who need a 60cm frame need at least 44cm bars -- I know I do.
Anyway, to make a long story short, I planned on replacing them with a set of bullhorns as soon as I could get them but after another few spins on the bike I just detested the stock bars more and more. So I started poking around my parts boxes, and came across a set of Weyless XC20 bars -- I think they're considered risers, but it doesn't have a very big rise. Certainly not a flat bar, however.
I put them on my bike, and... WOW! What a difference! Power transfer is way better when I jump out of the saddle for a sprint, I feel FAR more stable. Trackstanding is SO much easier.
They're a little bit too wide; probably close to 50cm. So I'm going to chop them down just a bit, and I think I'll be keeping them. They've made a convert out of me.