OK could be a solution. But, according to me, not the way to choose if you are software editor and want to make your title attractive to the greatest number and, very important, over time. An elitist game won't be a crowded success, even though the enthusiast we are seeing Gran Turismo as a simulator and not as a game. Put a system that designates some of its users as cheaters and it's the whole system that suffers, I'm convinced.
Imagine we are Polyphony Digital Inc. Our objective is to make attractive our game and addict our players (is there any addict player here in the audience ?). With SRF (or SRT in french

for MWerte), you give the possibility to non experienced players ... no, sorry, pilotes

... to share races with the very good ones. Let's be clear, I am an ardent fighter against the SRF (RocketJoe can tell you), particularly in the way users can use it on GT. I just want to share with you my reflexion on this subject.
SRF seems a good idea at first, unfortunately PD was naive to think that it will not be used to cheat. So in one side SRF is positive for casual or in the learning phase players, in the other side you don't want to give cheaters the possibility to spoil rotten the game of honest ones.
My proposal (PD, if you read me ...) : make SRF available only for slowest pilots, as an help for them and also to make racing more competitive. But, how can we identify real slowest pilots from cheaters to distribute fairly that gift ? I see two possibilities.
1. Slowest pilots are those racing under a certain percent of time compare to the leader and, naturally they choose SRF option. You give them an amount of SRF gradually according to the distance they are separated from the leader. For example, if the player's car is at least 50% far from the leader and the start of a racetrack, he receive 100% SRF, 75% of SRF if he's between 30-50% far away, and so on.
2. Players they've chosen SRF option begin the race with 100% SRF, but then the percentage decreases as the race progresses until last lap. Last lap is without SRF for every player.
Any better idea ?