It's the third road course I've driven.
Indianapolis (O'Reilly) Raceway Park was like driving on very old torn up bumpy country roads. What a fun track to drive an hour enduro...not! I didn't have much fun at all that day (spun in the grass twice).
Compared to IRP, Nelson Ledges was like running on the autobahn...lol. Well, not quite, but the bumps were a lot smoother than IRP and I really did have a lot of fun. It's a scary track though because most of what little runoff area they have has good elevation drops from the course, and just piles of tires to stop you. Not neatly wrapped tire barriers, just piles of tires that from a couple videos I've seen likes to launch your car if you get into them. During my Saturday race I saw a car in my mirror go off in the carousel and all I saw was his tail lights as the tires grabbed him and whipped him around in a spin.
The nicest course so far was at Blackhawk Farms in South Beloit, Illinois (WI border) where I did my two day driver school. Pretty smooth and lots of runoff...although it's the only course I've stayed on track for the whole time...lol.
After the 24 hour race next month at Nelson I'll probably knock it off for the rest of this year. This stuff's expensive!

Next year we're looking at running some other courses...Road America (Elkhart Lake, WI), Mid Ohio, and either Gingerman Raceway or Grattan Raceway in Michigan (or maybe both). That's about the limit to our commuting distance. I'd really love to try the Glen, Road Atlanta, Lime Rock, or VIR...but they probably won't happen.