We report on initial experience with the CDF Layer 00 Detector.
Layer 00 is an innovative, low-mass, silicon detector installed in CDF
during the upgrade for Run 2A of the Tevatron.  Noise pickup present during
operation at CDF is discussed.  An event-by-event pedestal correction
implemented by CDF is presented.  This offline solution prevents L00 from
being used in the current incarnation of the on-line displaced track
trigger.  Preliminary performance of Layer 00 is described.