Mass vs. X-ray for the model Full-a. The color plot shows the convergence (at z = 3) for the spectroscopic model. Only the dark matter component of the lens model is shown. X-ray emission from Chandra are shown as black contours. It is important to note the excess of mass near the X-ray local peak at the east. The south clump is now clearly more massive than the northern one but also more elongated along the direction of motion.