Thanks for that, John. Back in the Eighties, when I was doing the Munros, I enjoyed a round of all the high Monar peaks in running shoes with a bivvy bag; it was wonderful! Since then, I have plodded through on the Challenge a couple of times, but not on this line, so I'm really looking forward to it. Mike and I expect to hike it together, but it's me doing all the planning - now I'd best get the paperwork completed and sent in!