Heres a pic of my old clutch, sorry its not the greatest quality, but i have a cheap dig cam. You can see by the red circle where its is shiny and that is where it grinded internally. Its worn the same by all 4 springs. The clutch itself has a ton of life left but apparently due to poor construction, the inside of the disc fails first.
In regards to your friend, since he only had it one day, PLUS if the clutch come out like this. ANYONE can see it wasnt due to abuse or inexperienced driver. Its an obvious MECHANICAL FAILURE.
