In reply to Jamie B: Never been to the crag so can't comment, just on looking at the guidebook. And yes, i'm not a big fan of line drawn topos. In my mind, it would be much easier for a photograph to be taken and edited to show where the routes are. I was planning a visit to Loudon Hill on a trip home this weekend but the weather looks like its going to crap out so it'll be a no go most likely.
Thanks for the replies.