Bob has plots of the the calculated times for scintillators for Z decays in front and rear BSU and TSU. The plots show the value with offset=0, with calculated offsets (per channel) subtracted but drifts ignored, and with the drift as a function of run number also corrected for. Rear curves are narrower than front, which is consistent with larger pulse heights (the tracks go through at steeper angles, so leave more light). They also show up at somewhat earlier than expected times, which is also consistent with larger pulse heights.
The TSU has surprisingly few entries--perhaps due to poor COT tracking at large eta.
Modified 9-August-2004 at 10:22
http://hep.physics.wisc.edu/~jnb/imu/9Aug2004