I was up here on Thursday last and it was a piece of piss to get to :-) I went north from Scorhill and it's very, very simple - and dry :-)
I noticed on the 1:25K that the outlier is actually called 'The White Moor Stone'. Does it deserve to be a sub-site or should it remain part of the circle?
P.S. I didn't wait until the weather was good and got soaked. Luckily I had enough breaks to get my camera out at each site I went to on this walk. White Moor is a terrific site and deserves a visit if you're in the area.