Thanks for the helpful replies. After some reading (Pearsons Midlands guide), map studying and deliberation,I think we have decided to leave Napton and head for Market Harborough. Looks like some good scenery, tunnels, locks and......pubs. If by chance we are not to "Market" by Tuesday evening we can just turn around where we are. I think we'd like to have the extra liesure time if needed, and not be completely tied to a schedule that we would if we did the Warwickshire ring. We sail the Chesapeake Bay here, and always like to spend a day or so at each stop rather than hurrying on to the next port. Rain suits and rubber overshoes have been ordered (just in case), passports checked... just need to order another cruising guide.
By the way- what is the "real ale" I keep reading about. We really enjoy sampling all of the local beers we can when we travel, so I'm sure it's something we're going to like.
Thanks again, and see you in April!!