In another branch of this thread it has been demonstrated that the
conventional RC formula correctly predicts the reflected voltage
for lines with non-real Z0. Convential RC is the general predictor
for transmission lines.


I disagree with the demonstration. Maybe you are a bit biased?



Use conventional RC formula for purely real Zo only, which is what we
mostly do anyways.



The caveat is that for lines with non-real Z0, |rho|^2 can not be
used to predict reflected power. |rho|^2 predicts power only for
the special case of lines with real Z0.


This may be true, but are you saying that a capacitor can reflect an
RMS voltage wave that is greater than the one that charges it?


Slick