That is really an excellent writeup. Some very useful information. I have known [vaguely] for a long time when Es season was, but this information really allows for one to plan out an exact angle of attack for best results. i know I'm going to be thinking long and hard about finding a way to have something to use on 10m through 2m + a scanner antenna. Right now it's a one-at-a-time thing, and I have to pick and choose. And I like scanner DXing as much as i like making Qs.
Thanks for sharing!
Mike