Quick video of a lap around NCM West in one of my PFM cars. We ran Hoosiers and Coopers that weekend and the Hoosiers (literally right off the mold) were about 1.5 seconds quicker a lap. The car became so much more physical after swapping on these tires! I could only do about 8-10 laps before having to pit and rest my shoulders for a minute. I could probably mitigate that issue with a better seat pour but until these cars get raced, its not a huge problem.
https://www.youtube.com/watch?v=SyxXh-lS854&t=7s
https://www.youtube.com/watch?v=SyxXh-lS854&t=7s