Originally Posted by
Litespud
yes! Get the saddle height/setback/angle wrt the BB first. Your legs are doing the work, so optimize their position first. After that, address the height and reach to the bars by adjusting stem reach, spacer stack, bar design (ie, leave the saddle position alone!). If you can’t get a good position without extremes in stem length or stack height, reconsider your frame size.
When you break it down into such simple terms it becomes obvious as hell. I think bike fit is one of those things that gets overanalyzed to a point where it becomes confusing. Good job in simplifying it, thanks.