Originally Posted by Emoto
So, what you are saying is that there is no typically BMW quirky aspect to anything in the design of the system? I have had plenty of clutches and slave cylinders apart, but not a BMW and not one of these, so I am more than a little reluctant to make assumptions. If we were talking about Yamaha, Suzuki or Honda, I could go along, but until I can see a service manual or have my hands on actual parts, I just don't know. Sure, on a surface level I get your point, but what has BMW done with the slipper aspect? And what else have they designed in? I don't know.
The slipper clutch doesn't have anything to do with the hydro system. As for the BMW special setup, you may have a point, but it appears its all "normal."
Clearly your issue is fixed, but I just don't understand why and I'm really curious. I really can't grasp how LOWERING the fluid would help your issue.