Sorry again Cuz. I have done Deal Festival for quite a number of years running the session in The Bohemian garden, so it was already booked on leaving last year otherwise I would have gladly been at The Crayford Arms. If you go to this website :- http://www.frootsmag.com/content/festivals/gb/ you'll see most of the festivals are there (although strangely Deal isn't there) and this should help avoiding clashes. Deal by the way always seems to happen over the 3rd weekend in September.
John Barden