Ok, so I took a look at the final registration list and the half is going to be chalk-full of people. There are 22.5 pages of registrants for the half ... the full only has 6.
I will likely be one of the last half finishers, but I don't care - this is about finishing ONLY.
Janet, if you decide to do the early start you'll have 7 hours to finish, and given your time on your 12 miler the other day I don't think you will have any problem with it at all.
See you on Friday :-)