Just gotten around to trying this. I already had Betonschleife and Sudschleife from another source, but it's great to have some uniformity to the four circuits.
I hope that you continue to work on this as Gesamtrecke still needs some improvements (replay cams, for instance) which is why I've only given it four stars at this stage. I noticed a bit of foliage popping in on that circuit and Nordschleife, but on the whole, this looks to be shaping up to be a great mod.