The pedestal for the run 8100051.all root files seems to be lower (Adc approx 15) in the AuAu 2007EmcMbStatus runs than it was for the 2006 p-p and more importantly, the pedestal from from run 8089030 on Friday, both about ADC 200
2007EmcMbStatus Av. value for pedestal is about 15 adc here (entries < 200 per cell cut from this plot and cells coloured to highlight pedestal)
2006 adc vs. first 1200 channels. Av. value for pedestal, ignoring bad channels, is about 200 adc
First 800 towers from Friday 30th run 8089030, here pedestal approx. 180 in ADC