Comparison of the SPOTS models to the sub-subgiants of M67. Top left: spotless models from 1.25 to 1.35 M_⊙, the approximate turn-off mass of M67, compared to two SSGs from the cluster. The models cannot reproduce their location at all. Top center/right: same as top left, but in two different CMDs. We also show a catalog of M67 members as blue points, demonstrating that our models predict the post-MS of normal stars accurately. Bottom: same as top, but now including f_spot = 0.51 (yellow) and 0.85 (green) SPOTS models. The models cool and reduce their luminosity enough to predict the locations of the SSGs in all three panels simultaneously.