Shimano RD-6700 Ultegra RD --- BEST shifter recommendation
I'm running a new Shimano RD-6700 Ultegra Rear Derailleur (Short Cage / 10-speed) on my Cannondale EVO SuperSix. I have a single chainring (that's all you need to bomb around Manhattan) and 23-12 cassette. I have flat-bars, and currently have the Shimano Tiagra shifter. It feels very heavy compared to the Deore shifter / Sora rear derailleur I have on a different bike. The Ultegra derailleur is brand new, but the shifting feels like crap!!! What is the BEST compatible shifter I can use (remember flat-bars) to help my shifting?