Steve reports that he used one rope but would have preferred to have used two (he only had a gri gri). Dalvinder belayed and Dave Buchanan filmed it!
On the grade, Steve doesn't think an E grade is relevant and would go with the HXS grade given by McClure. Quality wise, he commented that it was certainly worth the effort. Finally, Dunning said "I used the same sequence that Steve demonstrates in his video which saved a lot of 'sussing out'".