Now he reveals, part of the reason he went was he wanted to compare the Swiss problems to his own The Natural Method on the Skeleton boulder at Glen Nevis, which he had made the first ascent of shortly before after several years of on and off work.
Dave's conclusion is interesting to say the least:
There are quite a few problems around Scotland now which are a lot harder than both New Base Line [8B+] and Mystic Stylez [8C] which I climbed in Magic Wood recently.
Because of this, he decided to give The Natural Method, the hardest thing he has done this year by a mile, 8B+ instead of 8B(!).
It would seem Scotland is then home to several of the hardest boulder problems in the world.