Thanks everybody, decided on the 330's, got them from accelerateuk.com they had a stall at the Eccles Pike fell race, got some good advice of them and they let me have a run around the field in them too(very helpful people)said that the 330's were more robust and had slightly better grip than the 290's. Not tried them out yet due to a calf pull, let you know how I get on. Thanks again for the advice.