Personally, this is something I don't like.
The system is in place to rate you based on what your true sportsmanship rating is at full race pace, if you cant run clean at full pace then you shouldn't be S rated. People complain that other people hit me so my rating keeps dropping, I need to be S rated to avoid the rammers. The system is setup so that the person at fault gets the penalty, rammers will drop SR and clean drivers will rise in the longer term. Yes in some cases the penalty and SR drop will be attributed to the wrong person, but this is not as consistently incorrect as many people make out.
Couldn't agree with you more regarding "gaming the system" to achieve an SR S rating.
This so called "advice" of running around the back of the pack is twisted logic.
If everyone takes this advice everyone is suddenly S rated, regardless of whether it's deserved or not.
It's no wonder we see constant cries of "and this happened in an SR S race".
You reap what you sow.
Saying that, SR S should be more difficult to achieve, so PD need to revisit that.
As for the OP, my best advice is to practice in qualifying until they think they can do no better, then hit the race.
I understand grouping is a luck of the draw thing, but entering with the best qualy time you can gives you the best opportunity for a high grid position.
Also, there's the obvious advantage of spending time learning the car/track combo., brake points, corner entry speeds, when to plant your foot on exit, etc. etc.
I've no idea behind the machinations of the DR system.
But l would say it's all about doing better than the game thinks you should do.
Too many situations to describe.
But let's say you are DR A in a field of B and C drivers.
The game expects you to win, so youll earn little DR points even if you do.
In a field of a few S drivers, a handful of A, and the rest B, earning 3rd when the game expects you to get 5th or 6th will probably earn you more.
So practice, practice, practice.
Best qualy time you can.
Hope the game gods give you a good grid position
And if you find a race that's working well for you, drive it until you can drive no more.