Had 2 experiences with and without RS tires yesterday evening, as per the room rules/set up.
First was a clean racing room with either one or a small selection of cars chosen from the recommended list by the host, with no restrictions or tires so sadly it was RS's all round. While the racing was good and people were generally closely matched the tires killed almost all of the fun - it was impossible to break traction in both an Amuse 380RS and Isuzu 4200R, they just handled like they were on rails with a little understeer if you actually get past the tires silly limits. In other words it made two lively and fun to drive cars feel dead, and while the racing was pretty close it would have been so much more fun and probably closer if we just stuck to sports tires, even sports softs still allow moderately powered cars to slide around when provoked!
Anyway after a few races I left that room and found a clean shuffle room using the top end of the available cars (GTR, Yellowbird, AC Cobra, RS6, M5) and being a shuffle we were all on sports hard tires. And it was at least 5x more fun than the previous room!! Even in a GTR which I personally find quite dull to drive it still felt like I could break traction, slide around and make a mistake and getting a good result was far more satisfying and enjoyable. Also, on 'proper' tires how well you start has much more of an impact on the first part of the race, assuming you do a standing start.
I should also add that the only reason I ended up in the first room was because I'd had given up finding a room with tire restrictions that was not drifting, as 99% of them have no restrictions, and this includes most of the 'clean' and so called 'pro racers only' rooms. How about we try and set up a group where we can have tire restricted races in a variety of disciplines and PP's and have some sort of universal name and setup for them, so they are easy for people to find?