Extreme clutch shudder

Do you have the flywheel/crank bolts in place ?...
That's what I'm saying here..........
An MP disc centered and sitting on bolts does leave a small gap here. (.030" faced off this FW)

I had it on two bolts. Indexing the disc around did not make a difference.......
upload_2020-9-23_13-46-32.png