Nice write up man, I tend to tune for circuit and grip but this was very interesting to read. I usually end up drifting my race tunes and still have some success but this should help me nail those 3 star drift zones no problem..

With your deceleration differential explanation you didn't go into much detail about what effect this has on the car.. Am I right in saying a higher rear diff setting will make the rear less prone to oversteer and a lower setting will make it more prone to oversteer entering a corner. I tend to run my race tunes with 90% acel and 20 decel..

I should mention I tend to like my tunes even though they are race tunes to be more prone to oversteer as I'd always rather play with oversteer than fight understeer. I rarely read tuning guides tbh so again thank you for the information. Although I feel I have tuning down quite well already I'm always willing to learn more which I have done today and will definitely be trying some small changes to my tunes. I'll also try out your tunes, I always prefer to use my own tunes but will be nice to compare and see what sort of feel I need to aim for.