Hello fellow FRA goers! Relative newbee to this forum so be gentle

Is anyone doing thew St Bega's 35 31st Aug? Did anyone do it last year? I have done training runs on many of the course section but the start Dodd to Keswick looks tricky so hoping I can follow the masses until spread out beyond Derwent

Also, never run with a Road Book before....is it really necessary? Have the GPX file...who accurate is it?

Lot of Q's there I know but really do appreciate any responses

Mac78