I went to Infineon last night for the Wed night drags. I had nothing but traction problems from 25psi down to 12 psi in the final round. The tires were all over the place. I am not sure but, it seems that since I did a bunch of burnouts on these tires something has changed and they really don't grab like they use to. I thought it may be the track but watching others it didn't seem like the track was the problem. Can anyone shed some light on this? the life of a drag tire although there is a fair amount of tread on the tire. They don't seem to stick. To many burnouts?