I believe that the M6 clutch has a hydraulic throw-out bearing. That eliminates a need for an actuator arm. Also most hydraulic clutches have no adjustment other then the clutch rod freeplay. Our cars don't seem to have any adjustments, I just checked. Most cars need 3-5 MM freeplay to prevent clutch from dragging. I have a little slack in the actuator rod pivot, other than that the master moves immediately when I move the pedal.
My clutch grabs very low, the opposite of what you guys are saying.
And I still stall it a couple of times a week. I think I got it now finally!