Thanks for that. A useful link. For whatever reason, I'd overlooked it.

I think I'm going to just pitch up at Milngavie (or, I guess, FW) sometime over the next few weeks and run it. Seems not to require any obsessive degree of planning and the route looks pretty straightforward. I figure on two days but if it stretched to three, so be it. I don't have any obsessive goal time-wise or whatever; just want to run it.

Any thoughts on direction (N-S or S-N) welcome but I'm presuming it makes no difference.