must admit that generally don`t suffer to much with cramp BUT I`ve never raced in a fell race longer than 11 miles so the jurys out(and waiting no doubt!!) on when it might strike.
Just out of intrest as I have no idea of the course is 4 hrs a realistic target for a finishing time or should I just concentriate on finishing.
My off road mara time is 3.15 although there was less than 1000ft of climbing so not really a good conparison .