I thought I had revised and edited the final version of my Book One of my mediaeval saga set in the reign of Edward II. To make sure, before I submit it to an agent in accordance with the submission guidelines, I printed a copy. It was the right decision. So far I have found gerunds to get rid of, a few awkward phrases to rewrite and one or two grammatical errors.
Deep, deep sigh, sometimes I think the novel will never be finished; and when it is I will write volume two of the saga.