I was wondering if anyone has experience using the knowledge in Joe Friels Cyclists Training Bible for longer distances. Specifically, I would love to improve my century time, and move up to doubles, triples and eventually the Furnace Creek 508. I just want to be sure the book will be useful for those events. I get the impression from reading about it on amazon that it is more geared toward racers who are doing crits and actual races. Anyone have an opinion on this? If this book isnt the right training book, which one is? Thanks!