[Superman]

I was the one who suggested that toasted shock cause tire cupping. By cupping I mean that each of the hundreds of tread "mesas" ended up shaped like a cup. I'm not talking about wear in the middle of the tire, or on the edges. To me, "cupping" means the tire has many, many areas where the tread has worn into a bunch of cups. As far as I know, the only way this can happen is if the tire has actually been bounding up and down due to a shock that is effectively not even there. If a shock is operable at all, it will keep the tire from actually bounding and cupping. You've seen cars like this on the freeway, haven;t you? Where the tire is actually bouncing up and down on the road surface. I think it would be unlikely that both your front shocks are inoperable.

As a side note, this is the shock's job....to keep the tire against the road. Not to keep the car from rolling side to side, or bouncing or whatever. The job of a shock absorber is to keep the tire firmly against the road surface at all times.

Go to a tire store to learn about cupping. I suppose there could be other causes. Again, I suspect we're talking about different things.