Clutch disc cracked...again

Certainly one of the areas I wanted to inspect was the clutch discs.  In 2011 at Watkins Glen I had one of the disc shatter.  Unfortunately during inspection I found stress cracks in one of the discs.  The same location, that being the one that contacts the flywheel.  I think it's time to have the flywheel looked at by Jim, something is not right. 

If you look close you can see the crack coming from the circle. 

This is the one from Watkins Glen in 2011.  If you don't catch it in time, this is what happens.