Another possible analysis is the examination of fluctuations in very coarse eta-phi space, for instance variation in the ratio of multiplicities in the forward (positive eta) and backward (negative eta), F/B. Results for the standard FRITIOF events are shown in Figure 8 Setting the threshold for Level 0 acceptance as events which are outside +/- 2 sigma, which result in less than 0.9 and greater than 1.1, and then applying this to the collection of plasma events (Figure 9) only approximately 15-30% of the events would meet this requirement.