I remember the doing the winter Keilder one with Mrs Bpd, got a lift up there in the back of the Middleburn van, 4 people in the back with no windows, 6 bikes, pack of cards and all of our kit for 8 hours. Event was real cold, snowy overnight camp in a frozen bog then waking up having melted the frozen layer to have sunk overnight. Was enough for me as an experience of Polaris events, have friends who did loads of them and still hear the stories now about flooded campsites and arguments between teammates.
Seemed to do a string of Keilder events back in the day with a few Moore Large Kielder Classics too, trials first, enduro (long ride with trials sections, timed sections, trail tests) and then an xc race. Anyone else remember these?