Spatially averaged cumulative light and mass histories and their uncertainties for four regions: red, blue, green and grey colors correspond to regions R > 1, R < 1, R < 0.5 HLR and the nucleus, respectively. Left and right panels show OR1 and OC002 simulations, respectively. The top four panels show cumulative light distributions, in both absolute (a), e)) and relative (b), f)) units. Similarly, the bottom four panels show the correponding mass distributions. In each panel and for each radial region the original solution is drawn as a dashed line, while results of the simulations are shown with shaded bands, hardly visible except for the nuclear curves (grey). Light shaded bands show the ranges spanned by all 10 perturbations, and darker shades indicate the range spanned by the 6 versions closer to the median. The nuclear curves in panels a), c), e) and g) contain much less light and mass than the others, and so were multiplied by 20 for clarity.