Saving or spending fuel is what drives our strategies, tire wear is no longer concerned as it doesn't seem to effect our Grip Levels.
At the moment I run my data from the following values of tire wear:
[list]
[*]100% to 60%
[*]60% to 40%
[*]40% to 20%
[*]20% to 0%
[/list]
and I barely see any difference until my tires actually puncture at 0%.
*For notes and references, I use a theorycraft team to stress test or setup test certain developments and try to deploy those onto my main team.
Back to my point, I don't see tires playing an important role anymore which is a shame.