Harrisman, Well I didn't manage 70 but did do 58 miles with 1400m climbing and I was nearly bonking at the end (getting dizzy spells)! I still managed though but have decided to go for the 60 rather than the 90 as I think I'll enjoy trying to get a reasonable time doing a 60 instead of struggling around the 90. There's plenty of other events to do 90+ miles that I can progressively build up to and still manage a respectable time (for my own satisfaction nothing more). How did you get on on the Cairn