Hi Graeme,
Generally as soon as we can get there. I'll prob be there from 6:45 or so but no doubt I wont be the first to arrive.
Grid ref: NS 608 378 (stick into Get-a-map at link below or multimap)
Parking is on the road just to the east of the hill. Just walk up to the obvious crag on the southern side, trying to avoid getting your feet wet when crossing the stream.