Originally Posted by
Kapusta
TT bikes have steep STAs. TicTac has done exactly the opposite and shoved his saddle all the way back on a setback seat post.
I believe it has something to do with his style of "push forward" pedaling to actively engage the glutes all the time, together with the quads and I think to also "scrape" the pedal backward at the bottom of the stroke.
I think we have similar goal of recruiting the glutes. However, it seems I can actively recruit the glutes even if my saddle is set to KOPS fore and aft position. You'll feel it if you're recruiting the glutes to a useful degree during z4 to z5 efforts. You'll feel the lactic build up on both glutes and quads happen at the same time and at the same intensity.
I can even at some point allocate more power to the glutes and hamstrings on the down stroke than to the quads that my quads never get sore at all or if I need to rest my quads if they get sore due to lactic build up.