I'm a newbie to bike fitting, have been playing around with the fit on my newish Roubaix on my own and plan to get a proper professional fit in the coming months. The assertion that the classic starting point for a fit of aligning the knee over the pedal spindle might not be necessary seems plausible to me, with the major caveat of my limited experience (and I guess TT bike fit ends up with the knee necessarily farther forward anyway). Curious about others' reactions to this: http://www.sheldonbrown.com/kops.html