snthennumbers and driveroz247 thanks to you both for this invaluable info. Really appreciate your time and I am learning more every day I will absorb all this information over the weekend, I am weary at the moment as my second race took me through the to early early hours of Saturday morning 4:30 am lol.
One last thing regarding the flashbacks. I did use a few, not many. I was aware of cars coming off the track on corners and I noticed it happen on two occasions so I flashbacked again to get them back into the race.
If you do use a flashback and no AI "within the line of sight front and behind" comes off the track is it possible some may leave the track that are "out of sight" if so maybe that could contribute to DNF's.
Thanks again guys.
Yes that will happen Chris, you'll be able to see this very easily at Monaco. Watch your mini map and wait till an AI car is just leaving the chicane after the casino tunnel. Do a flashback to when they're in the chicane and they'll crash into the left barrier almost without fail, and that will trigger a SC deployment.
Other times, at other parts of the track, or even at other tracks if you do a flashback and an AI car is mid corner, they'll "twitch" and go sliding off the track triggering a yellow flag for that sector.
So use those flashbacks wisely 9if at all) if you're going for the most realistic outcomes for your races.
Cheers