Thanks so much, Kev, I really do appreciate your input, I am getting better at my terminology, but not perfect yet!
I would like to reference your site, but I'll change the link to your home page, and add in this discussion so that people can read your proviso. I don't have the book yet (will see if it is available on Sunday at Cambridge, or get it from Amazon later) so I can't happily reference that.
btw - I looked carefully through all your canes and couldn't find an exact match, although there were quite sufficient similar in shape to be happy I had made the right decision, but could you tell me which one is an exact match?