Right, time for prevarication is over, clearance has been gained and the entry form is in the post!
From memory last year we did approximately 35 miles but I seem to recall that we were frequently 'off message'. Hopefully this year signs and maps are a little better (or at least our skills in reading said signs and maps).
Bike wise I'll be fully rigid and almost certainly ss (regardless of whether a derailleur is fitted or not) and brake wise I'm thinking cantis should fail to arrest what little speed I generate pretty admirably.