9. Standby Team Members: Inevitably, out of the 10 people who agreed to take on the challenge (when you suggested it in the pub) some were never really going to attempt it, some just are not fit enough, some will get injured or be unwell, and some won't be able to get the time off work. Get some financial commitment up front, and don't book accommodation, etc., until you have some money from them! One or two members may still pull out very close to the date for genuinne reasons, so try to have a standby walker and driver ready and waiting. Don't be tempted to share the driving between the walkers if your driver drops out - have a standby ready...!!!

8. Setting The Dates: The end of June gives the longest daylight hours, and the shortest periods of darkness. It is possible to organise your challenge so that you do not have to walk any mountain in the dark at this time. However, this is also by far the busiest time of year for the challenge, and you certainly won't be alone. Check the internet for dates of large organised events, and try to avoid these dates. If possible, use mid-week or a staggered weekend (ie, Fri/Sat or Sun/Mon) rather than the weekend itself. For dates either side of the summer (April, October) you may well find that you have to walk two mountains in the dark.