The Viggen clutch has disengagement issues? Or the B204 stocker does?The stock clutch has problems in the high revs disengaging fully.
-98 is hydraulic so thats a plus.. I would start by bleeding the clutch. Mounts won't keep it from going into gear. Can affect the shifter precision, yes. The wait to go into gear is the disk dragging and the syncros not able to cover it up.
My stock b204 clutch has no issues disengaging at any RPM:-?