2013 plans

1)  Cheshire Cat - late March, medium course (100km) - includes the very steep Mow Cop, but don't fancy doing the whole 150km course this early in the year.
2)  London Revolution - just found out about it - 2 days in mid-May to go right around the outside of London, with camping on the Saturday night - plus party...

Anyone done these?  Any advice?