I think that might be something to do with the "at" symbol in the address. Try substituting it with a * and see if it gets on the forum, if not l'll let you have my phone number.
An update for you. I've dug out all the original clues (newspaper cuttings) for the 1969 run from Cofton Common - it had a very steep incline near the beginning, up Rose Hill through Lickey Gorge, just in case it helps you remember the pain. I also have a newspaper cutting describing the whole week-end of events, aka Cyclorama 69. Plus..... I have one picture clue from 1968, plus descriptions of another six which means that the originals must be hanging around somewhere, hopefully with the clue card. Anyway, as l said - l know both routes anyway.
I hope to hear from you soon,
Ken.