If you want to write a guide book - Be prepared to have everybody who was asked for info, seen requests for info and did not respond, who knew somebody was writing one but did not want anybody to know thier special place, etc be your worst critic when it appears in print - "I did the first of that route", "Its a lower grade than that", The worst route description I have ever seen" - Over a beer or two, Nick Dodge, Jeff Thomas, and Greg Orton have told me stories of how people seem only be able to spot errors after the fact.