Thank you for the advice. Not sure where any such popular locations would be. I sail out of a relative's house who lives on lake St. Clair near Windsor. Don't see too many windsurfers out there. Only one this year and they were down the shore a ways.
Sandpoint beach, near Peche island, has been somewhat popular (for our area - one or two people) in previous years but I have not seen anyone there this season.