I live 200 miles from Nashville, but wouldn't be excited about Opry Mills nor Cool Springs as a transiting supercharger location. Both seem to have extremely heavy traffic. Rather, should be a spot outside the densely travelled areas yet close to an intersection of several interstates. For example, Spring Hill TN just off I65 near the intersection of the southern/outer loop, which links via low traffic Spurs to I40 East of Nashville, I40 West of Nashville, and the interstate to Chattanooga and then Atlanta. There's a strip mall with about 5 fast food/sit down restaurants and several shopping locations, and across the street from a supermarket. It's on "Saturn Parkway" and Main Street. Called The Crossings.
PS I filled out the form