Be careful. Days are very short at this time of year. Leave Coventry early, to allow for any holdups or other problems. Also, if it's a clear day, you'll be flying back west in the afternoon....almost straight into a low sun, which is uncomfortable and makes navigation difficult. And if you do get temporarily lost, not being able to see much when heading west will make things even harder....plus the pressure of knowing that it'll be dark soon. I'm not saying don't do it, but bear these things in mind.