[ben@tirerack]

Shallow tread is better in some ways for track. The shorter tread blocks will squirm less, so there will be less chance of getting nasty irregular wear.

As noted above, make sure to read the rules on what is required for tech inspection, and if you're running with shallow tread in the wet, watch out.

Also, as a general rule, follow the old adage of slow in/fast out. The most common way to murder street tires on the track is to go bombing into corners too fast and tear up the outside front tire.

Bonus is that the tires are nearing the end of their useful street life, so there's minimal loss if you do happen to cord them.