The experimentally observed and simulated density, velocity, and vorticity for a shocked gas column 750 microseconds after the shock wave has left the downstream edge of the column. After two years of close collaboration between the experimenters and a code user, the experimental and simulated magnitudes of the peak velocities now agree to within 10-15 percent. The signs and magnitudes of the vorticity are also similar for the two cases. As seen in the close-ups of the density comparison, the simulated results reproduce the larger-scale structure of the experimentally observed results but not the smaller-scale structure.