Thanks for information mate, I think that the following link is what you're on about: https://www.bar-tek-tuning.de/pilotlager-02m-getriebe-billetshaft
I will be getting my Spec 2+ clutch & steel SMF fitted when my stock clutch goes which will be sometime later this year, early next year I imagine as I'm at stage 2 now and the car has hit 60K. Already got a few bits I want doing at the same time such as short shifter, 42DD bushings, Fluidampr engine damper etc. so wasn't looking to spend anymore as I'm trying to save for stage 2+ parts. Guess I'll just have to see how I get on as not all SMF owners are reporting this problem, hope I'm one of the lucky one's but doubt it!
This doesn't seem to have been a problem with Spec clutches for whatever reason,but was a real problem with the Loba/Sachs SMF clutch.