Well I know that tires can make a difference at the drag strip but believe it or not, I find the PZeros to be the best for this type of surface. I got a 1.5s 60ft on that same road with new PZeros on my 991tts. I changed the air in the tires on the 991tts a fair amount, it helps to have a little less air than normal in them. I didn't let any air out before the runs and I am sure that they were quite high because of the drive out there. That's something I neglected to do. It's been a while since I was rigorous about the testing and I forgot about that. I only took the 488 out once and I didn't let any air out either.