In reply to Cthulhu: I used Ryan and Chris at Horizon Expeditions a while ago and they were brilliant. Both very patient, with loads of knowledge. They explained at the start of the course that they were not just going to teach us how to do things, but why as well and I found that really helpful. They also had alot of input re the psychology of climbing, and how to deal with anxiety etc (I'm doing a Phd in a similar area, and thought that their knowledge and execution was impressive). Definately reccomended.