Good to have you on board Ian although your taste in chocolate is poor!
LYDLT i take it you didnt go to see the down hill section then LOL, if your just out to finish the marathon then take it easy on the first part save your energy and legs for later there will be other marathons to do a pb and this isnt one of them so no point burning yourself out early on, keep up the training you will be fine. BK2 Good on you well-done.