Don't know if this vid is any help?http://vimeo.com/groups/54664/videos/15574437
strong seems the only option.
(may need a quick brush first - mind you so do most scottish boulders apart from those at dumbarton!).
What about those cold, windy and exposed boulders that never have any moss growing on them because no moss dare to?
ah just the man to ask, does this way not work since the hold broke then?
7a+ is a grade I expect to manage in a visit but I'm wondering if it's worth the journey if it's so hard and conditions are such a big factor.Is it really hard for 7a+, harder for the short, safe with one pad and a distracted spotter chasing after children?