Just took delivery of a Project One 58cm Pilot. I'm 6' 1", mostly legs and arms, with a very short torso. Very, very few stock frames fit my dimensions, but the Pilot comes close. The toptube measurement had to be short enough, and the headtube needed to be long for me. Even the 176mm Pilot headtube is a bit on the short side, as I kept a fair amount of spacers on steerer. A very nice bike and I do not feel a drop in performance compared to my Klein Q-Pro XX. Certainly more comfortable. Bottom line, if your body has some out of proportion measurements, custom is the answer. Sometimes a stock frame cannot be dialed in no matter what components are swapped. If you are short in the torso, have to believe 58 is good for you. BTW, what is your saddle to bar top drop?