This is so close to working perfectly... however, different tend to go off in various places. The 911Rs all go wide at the top of quarter bridge road, for example. The big problem is that there's virtually no margin for error anywhere. Thanks for this!
For sure other cars (than designed for) give various results, I think I can improve the whole experience as soon as I go about recording a new race line. Plus I now know exactly where ideal edge lines should be placed to suggest to the AI how to deal with combos.
I'm taking my time with the next update, rather than a small improvement/fix again.