The MIP peak calibration fit can be used to estimate the efficiency of veto settings for the ACD. The fit is a falling exponential plus a gaussian. The Gaussian represents the charged particles which we want the veto to reject. The falling exponential has three components: backsplah, residual signal from previous particles, and backsplash. In general we do not want to reject these components, since not falsely rejecting backsplash is one of the objectives of the ACD.