I looked at it last year, but it seems like there are a lot of hurdles to overcome compared with similar events- has to be teams of four, one of whom has to be a steward, have to raise £200 as well as pay the registration fee, getting to the start or from the finish on the day...
Shame, as it is a route I've fancied doing since about 1990. What kind of tyres are necessary for the full route- I've just got Panaracer Mach SSs
these days for mixed road and track use but worry that they might not be knobbly enough if I do try it.
Pretty versatile tyre by the way, smooth on the road and stands up to touring loads fine, although I realise that was done on wider rims than I favour these days.