Hi, I'm new to manual editing and I'm noticing some potential problems in my data. There are several sagittal slices that seem to be showing the dura as gray matter. Also, by the cerebellum, I cannot tell if non gray matter is being included. There are some dips by the cerebellum (especially on outer edges in screen shot) and I'm not sure if that area should be included. I have attached screen shots of these potential problems. Please let me know if you have advice on what to do in both cases. I want to avoid over editing. Thank you.