When using TrainerRoad and a Kickr, do I really need to calibrate the Kickr? The power readings are (should be) taken directly from my power meter (which I have calibrated). They suggest doing the spindown calibration for the kickr before every ride, but I just can't see the point. Does that calibration data ever get used if I'm using an external power meter?

---

------------------------------------------------------------
Any run that doesn't include pooping in someone's front yard is a win.