Hey all, so in Sept we are going to Imagination Mtn in Tenn from FL. I have gotten a few different routes from Google, and Rand McNally when it comes to which exit to take off of I40. The first one is Hartford Rd to Lindsey Gap Rd to 321. The second is 339 or Foothills Pkwy to 321. And the third is farther north where 321 runs into I40. Has anyone been on these routes, all input is appreciated I am driving a 40ft Class A and possibly a tow car.