The e-mail re-posted;
Reading the route sheet, where to sleep is a bit of a problem. I cannot readily see anywhere except Magor at 400km ish. To get there before dawn on the second day Dave is letting people start earlir than the posted start time of 6am, ie from 4am as the minimum speed for a 6am start is 15km/hr, as 14.3km/hr gives 42hrs and this is a 40hr event (607km in 40hrs 28mins with a 10:28pm finish on the Sunday).
Also the 607km is really 6km to 13km longer
Magor is at 396m officially but Dave reckons it is at somewhere between 402 and 409km so this is a hard event, and if you leave at 6am then you probably will not get to Magor much before 6am next day (4am means a 22hr 400 which is about my limit speed wise!) hence riding through most of the night is the most likely outcome. The stage to Magor is the long stage of 104km to 111km and the one that ** reckons was short!
I cannot see any way of avoiding a long night ride as Magor closes at 08:24 (opens at 19:12 for the fast ones!!!!!). Also the previous contro is one of Dave's in a lay by! Times opening and closing are 15:56 and 01:52, and no toilets.
On the night stage to Magor there is a 24hr petrol station, which is not a control, at about 12.7km from Abergavenny, at about 70km into the stage, and about 30km from Magor.
I have done Dave's 600km events before now without a sleep stop (in 2001 and 2006) as there were no inside controls suitable and last year I froze at Middle Bridge having got to Pease Pottage with you and the Collective too early, you may recall
I didn't even do Dave's 600 last year he's getting confused with the 400; but you get the general idea, fluffy duvets are not on the menu. Having said that; if you can finish this you can probably cruise LEL/PBP