In reply to Mr. Lee: That guide also equates Rjukan wi5 to scottish VII I seem to recall so I would treat it with a little caution. There was a thread referring to this the other week where modern M grades are different to old school alpine M grades as techniques have changed.
You wouldnt expect to be doing fig 4's on M6 solar for instance, but on a modern quarry M(D) 6 you probably might....