Just had a look at the LDWA site, and the tip there is to get to Fleet Moss before the grouping point.
As for target - my real target is to finish without crying, but I'll probably need a bit of a time target to keep me moving in the second half. From past experience I generally fade after the 30 mile mark.
Talking about groups - once you get grouped are you in those groups for the rest of the event?
Cheers for the answers,
LS