Quote Originally Posted by nscrbug View Post
Probably a dumb question here...but exactly how does one know how much setback they need (or don't need, if that is the case)? I've had many fittings (include Retul), but the fitter never mentioned "setback" to me, so I have no clue. FWIW, the seat post on my Cannondale Synapse is one of those teardrop-shaped aero posts, so it's not like I can easily swap it out for something with more (or less) setback. Infact, I really dislike the entire seatpost/clamping system on the Synapse because small adjustments are virtually impossible to make.
I knew when the fitter said, "Your femur is so short I can't get your knee over the pedal". He immediately swapped the seatpost with the setback for a zero degree seatpost.

If your fitters were happy with the position of your knee over your pedal then you don't have to worry about it.