Hi Jody,
This is Mike W previously from Shreveport and previously from Nashville. Sorry, but no cat sailing in Nashville. We used to travel to Memphis, Birmingham, and Atlanta to race. I had to switch to monohulls to get my racing in. Check out these clubs.
Harbor Island Yacht Club Lightnings, Lasers, and PHRF
Percy Priest Yacht Club J22s, S7.9s, Catalina 22s, and PHRF
Except for limited racing, we enjoyed living around Nashville.
Good Luck