Thanks Denis, your warm feedback is always welcome.
But I'm not a wizard, is just loooong work with patience on the files, and sometimes AI behave in an unpredictable and unwanted way though...
Just for knowing, in this track major issues was with overtaking lines (almost wrong, I've completely redo them) and missing/wrong/inappropriate behaviour flags, included missing tyre warmup (otherwise AI cars do the entire race with cold tyres...).
Another point that I think is often underrated or even unknown: min and max race lines are there not only for AI to return to pit slowly after a mechanical failure and as recovery point when press Shift+R, but moreover and almost - at least for me - to make AI aware of the track limits and help to keep that guys on the track. Because of this, at certain tracks I've spent more working time - even days, sometimes - to manually do new min and max race lines point by point, and why often they are so very different from real limits on the track or I leave a very narrow passage at some track's sections instead of a full wide road as is expected to be. But again, is always a fragile compromise, and often AI do wrong thing anyway, i.e. at the race start.