I don't know for sure whether BMW balanced the clutch as an assembly when they built the bikes and then marked all parts. But I believe they did.
When they manufactured parts like pressure and compression plates for the after market they surely balance those parts to spec and not for heavy spots. I think you can safely assume that there will be no markings on the parts as they will all conform to spec.
And then my previous post applies.
Some of the above is fact, some is fiction, some is my personal imagination and some is just simple truth. [me]
... i'm not touring around the world, but neither are most of the guys i see running overloaded spam cans ... [bmwblake]
'72 R75/5 The Blues