There is one thing I like to mention:
We've had a race on an open aston layout the other day, to see if the open track thing is already good enough to use in league racing.
The new race position list works fine and I don't mind the lack of yellow flags. You can usually see the accidents anyway (apart from SO, maybe).
What really is a problem, is the lack of blue flags. The race became quite uneasy as soon as the lapping began.
I wonder if you can find any workaround for this problem, like you did with the position list. I don't know how it's done, but the trackmap somehow knows which cars are ahead and which are behind. The trackmap also knows, where each car is on the track in any given moment. So maybe you could somehow manage to "measure" the distance between the cars and wave a blue flag when the distance gets too short.
That would'nt be a perfect system as there are bends and hairpins where cars are getting (geographically) close to each other without being close in terms of timing.
But as there aren't that many hairpins, I guess it would help racing anyway...