Dan, it's not just every now & then, it seems to happen nearly every run. I think Coil or Bernie once said that they just like to run 'em leaner than most.
And has anyone else noticed the chunks of rubber coming off of the cars in the shut-dopwn area. Nearly every car seems to do it & it seems to be worse when they shut them down early & right before the chutes come out. Seems like it's really become more pronounced, or at least more visible, in the last couple/three races.
I did notice that they showed what I assumed to be an engineer checking the temps of the rear tires after a run.
One more thing I noticed, what was all of the, what appeared to be metal fragments, coming off of Doug Herbert's car when they showed a rear view of him leaving the line? Sure didn't look good but didn't appear to hurt the run. Anyone else see that?

......................"HIP"