Just received this ... Wrekin Orienteers has organised a long orienteering event on the Long Mynd on 2nd September (details attached) and has planned a course specifically for those runners who would like to familiarise themselves with the terrain in preparation for the FRA Relays in October. This will be the same difficulty as the navigation leg in the relays. The final details can be found on both the Mercia Fellrunners and the Wrekin Orienteers websites.
(I've confirmed that it's course D on the attached doc, with the other courses more 'technical' than the FRA leg would be, and aimed at regular orienteers. Paul)