Im signed up to this challenge May 28th to June 1st. Cycling a total of 340 miles in 4 days, I must be crazy. Anyway, has anyone did this challenge before?I'm looking for some advice about speeds, routes etc. The organisers have an info day, however I'm trying to plan ahead, also i cant attend it anyway. I cant really find much info on the net from people who have completed it. Any advice would be much appreciated.