A seminar about Dimmak.
This is a link to a seminar about DimMak given by Doshu Nils Volden at Academia International de Artes Marciales run by Shihan Fransisco Diaz.
On this link you will find many photos from the seminar: http://www.aiam.com.mx/#!portafolio/c24uj
Photo taken from AIAM-Galeria (www.aiam.com.mx)
This seminar have been mentioned before in an article.