The RS tires allow you to hold your line thru turns with an entry speed of 209>214mph, in draft, with suspension setups that will allow you to hit 209>211mph, solo, into turn three at Daytona. My aforementioned setup lets me hit 209 and hold yellow thru the entire turn. With anything less that RS tires, maintaining those two criteria would be almost impossible, and I wouldn't ever want to try it in a tight group of 6/7 cars 3 wide. When we run longer "pit" races, the rooms are set with "very fast" tire & fuel consumption. I look forward to seeing, and testing, your "barbaric" tune.