Yes I have learned that the release mechanism at the pressure plate is a racing type annular hydraulic bearing. The service I will have done in a local shop will presumably determine if the problem is air, the master cylinder or the annular bearing (or some combination). Ultimately a clutch hydraulic system is basically quite a simple mechanism. However my fingers are crossed that the bearing is not the fault as that repair requires engine removal. Not so simple. The short 2000 mile usage hopefully predicts a simple problem.
