I have no idea about strains of pot , but I got some relief from chronic pain just for a little while smoked 2 big puffs off a joint and the pain went away in less than a minute.I believe people suffering from PN shouldn't be made a criminal for pain . Is this still the Stone Age or what? All I know is that it worked for me and I don't judge people for trying to better there quality of life. It nice to know that smoking a puff off a joint works for my chronic pain and if that makes me a criminal so be it. Peace !