Actually, Charlie Whiting used quite different words (which I've underlined) [source]If you remember, Charlie [Whiting] wrote to the teams after Hungary last year and said the tread is the part of the tyre which is constantly and permanently in contact with the ground. And obviously no one part of the front tyre is constantly and permanently in contact with the ground. So once this was clarified, we talked some more and really there was no argument anymore.
Clearly Whiting doesn't mean permanent or constant contact.With immediate effect, any part of a front tyre which we consider has been in regular or systematic contact with the track will be deemed tread and will be taken into account when measuring the width of the tyre as defined in the regulations.
So why is Dupasquier making this apparently feeble attempt to disguise Tyregate 2003 as a non-issue?
Its a different matter that the FIA have essentially made it a non-issue, since Dupasquier reveals that they never checked the tread-width of old tyres in 2004 by looking for wear patterns (they only checked the tread-width of new tyres, as they did for pre-Tyregate). But this is just because the FIA cannot or will not come up with a workable way of measuring "regular or systematic contact with the track". Tyregate 2003 was still a real issue, and it seems odd that Dupasquier is trying to cast it as a non-issue.