Thanks for video
My thoughts are that if the shiny surface wobbles in any way, it would cause even wear on the graphite because the graphite us rotating
So to me, any wobble would spread wear.
The case where wear would be uneven is if the shiny surface is not parallel with the graphite, but is not wobbling
This could be if the graphite plane is not parallel with the plane of the flywheel/clutch assembly meaning it is thus not parallel with the shiny surface
I think I can further explain by FaceTime
If you want to do this do private message me and we can set it up
Denny