I applied tighter cuts to the pedestal fits when looping the channels for the preshower crates.  I was able to significantly clean up the spectrums with respect to what is posted here:

drupal.star.bnl.gov/STAR/blog-entry/aliceb/2009/feb/16/timing-scans-barrel-preshower-shower-max-update

However, there still isn't anything to fit to get a slope.  I don't think I can do anything with respect to timing for this data.