I'm just wondering, how well is the influence of frame stiffness on racing performance studied and understood? I have no personal experience in this matter, bu

I'm just wondering, how well is the influence of frame stiffness on racing performance studied and understood? I have no personal experience in this matter, but recently I was reading some random stuff on the 'net and I found these guys swearing by flexible steel tubing: https://janheine.wordpress.com/2011/10/03/science-and-bicycles-frame-stiffness/ https://janheine.wordpress.com/2011/10/03/science-and-bicycl... https://janheine.wordpress.com/2014/11/23/what-is-planing/ https://janheine.wordpress.com/2014/11/23/what-is-planing/ I don't know what to think about this.