Oh Needsalt,
I feel for you. Finding a windsurfing spot near Tamworth will be the least of your worries, putting up with the mouth breathing flannel wearing banjo players would concern me!
I didn't sail back then, but I do remember one place where they have sailing races (catamarans and the like), when I was there watching the races there was one windsurfer who was competing as well. It was a handicap system. That was the first windsurfer I'd ever seen

Not sure how close it is to Tamworth though.
I'll ask my old man, he'll know.