As long as I make the cut-offs, I'm happy. If that means taking a time penalty in order to chew my own food, then I think that's a price that I can live with.
Wib - thank you for the pointer to the map. Cos it's on the SDW100 page I hadn't spotted it. Next time I'm down there I'll make a point of heading up from Jevington, finding that trig point and the route down into Eastbourne. (I figure I'll be up against it time-wise and too fried to navigate by then, so want the feet to know the last 10 miles or so without me needing to engage brain.)