Originally Posted by
Abe_Froman
Do you see how one of those statements directly contradicts the other?

No. You're asking for an objective measurement of that I have never measured. That's entirely separate from my subjective experience of increased speed due to increased drivetrain stiffness.
If you don't know and do care, do the work and measure the difference or research someone else who has.
If you don't know and don't care, move on with your life.