Hi Freesurfer expert, 

I am doing visual editing. 
In some subjects, the pial surface border is somewhat narrow (within the border of graymatter in my view) although there is no skull stripping error. 
I heard that adding the control point might extend the border of graymatter as well as that of white matter from other researcher.
Is it true?
Or, is there other way to edit to extend the pial surface border?

Thank you. 

Best,
Seung-Gul
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Seung Gul Kang, M.D., Ph.D. 

Psychiatrist, Associate ProfessorDepartment of Psychiatry, Gil Medical Center, Gachon University, School of Medicine, 21, Namdong-daero 774 beon-gil, Namdong-gu, Incheon, 21565, South Korea
Research scholar; Sleep Disorders Clinical Research Program, Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, 1 Bowdoin Square, 9th floor, Boston, MA 02114, USA
Collaboration researcherDivision of Sleep & Circadian Disorders, Brigham & Women's Hospital, Harvard Medical School, 221 Longwood Ave, Boston MA 02115