Please be careful out there - I got an email on Saturday afternoon that said one of my regular ride partners was in hospital with a broken femur and was going to be having surgery. His plans for the year included Paris Brest Paris - no more PBP for him. He is going to be AOK, the surgery went well I feel really sorry for his wife to have to take care of this cranky guy for the next few months. He normally works out some of his crankiness by riding.
If the weather outside is frightful - don't chance blowing your big adventure. The weather in Seattle finally was good this past weekend and I was able to get in 2 short rides so a 80 mile weekend to get me started.
Also don't forget if you haven't done long distance riding in the past it stresses your body more then anything you have ever done before. Be sure to eat healthy, take your vitamins, work on flexibility and building up those small muscles you will need in the wee hours of the morning to keep your head up.