You just have to watch that geometry if you convert a frame built for drop bars to flat. My Jake definitely feels a little wonky this way compared to when it was a drop bar. I've fooled with the stem length and rise a bit and two bars to get it where it is now, which I'm happy enough with. The top tubes are usually shorter than a dedicated flat bar bike, so you go to a longer stem to make up for it, but that makes the steering twitchy, and so on and so forth. If you solve those issues, it's great. The first-generation carbon Jakes have a pretty long top tube for a cross bike, so it wasn't the end of the world, just rather different even in its final form. Ultimately, I settled on a setup that put the bar in between where my hands would rest on the tops and the hoods.