I rode the route this weekend - I'd been hoping for a good weather window. It was either that or ride it in stages, but I wouldn't fancy some of those roads in the daytime.
It all holds together quite well - Birk Brow and (especially) Staxton Brow are bastards, but the rest of the climbing is short n steep or long n steady. Only Birk Brow and Staxton have both length and stepth.
Distinct lack of decent audax hotels along most of the route, but I had a good nap at the Shiptonthorpe McD's. Don't think I've slept on a 300 before. The fog up on the Wolds was ridiculous, and made it a bit too chilly to bivvy. I could see it looming over the top of the escarpment as I approached, and remember thinking "the Wolds aren't
that high, are they?"
Anyway, I've got a few entries, but I've ordered extra cards in case anyone is watching the weather before making a decision. I might do entries on the line, if you contact me beforehand.