Shock radius (solid) and protoneutron star radius (dashed) evolution as a function of postbounce time for each simulation in the comparison. The protoneutron star radius is defined as the radial location with a density of 1011 g cm-3, which is why it is non-zero before bounce, while the shock radius is defined as the radius where the velocity is maximally negative. In AGILE-BOLTZTRAN the shock front spans a large radial range, here we take the radius where the velocity has dropped to half its peak value rather than the radius of the maximally negative value.