If you had to choose, I'd pick from either RA or Sebring. RA will be the easiest for your dad if he's new as the surface is glass smooth this year. I like Sebring as it's the closest thing to Circuit de la Sarthe in Europe(in driving technicality terms) and is one hell of a course.
Clark, I saw the pictures in my inbox. I'm obviously not getting Jay's car so I'll have some time to swing down and work on the cars there. I gotta get you up here to see the FSR before my sister takes off with it again. 1100lbs of MERWD fun
If I can move this damn 48' trailer I'd pull it out and rip it around but the 5th wheel is gone right now...