Just played the pack for the first time, and I wanted to shout out to you because these are seriously great! I've been trying out as many packs as I can to play with my friends and rarely do I get to say that playing a track is genuinely exciting, but I never know what to expect around any given corner on these. That does lead to some initial readability issues on your first lap (which some of my friends would hate, unfortunately) but makes for a genuinely thrilling time for me.
I haven't seen any other trackdev with a similar design philosophy to yours, please keep up the good work!