I'm 6'0" and use a 54cm frame with a normal 100mm stem. I like to sit way back on my saddle, so I like a short reach, or I feel really stretched out. I feel like superman on a 56. The ridiculous looking saddle to handle drop is offset by the shorter reach allowing the arms to be more underneath the chest, propping the body upward into a less aero race position (more comfortable). Sitting back activates the glute muscles and takes pressure off the hands.