http://www.projectcbd.org/news/hemp-oil-hustlers-a-project-cbd-special-report-on-medical-marijuana-inc-hempmeds-and-kannaway/ Skimmed through it (over 30 pages) and looks interesting from what I've seen so far. Among other things, they highlight the dangers of consuming toxic metals/other poisons when using such large quantities of hemp biomass to extract CBD from. Hemp naturally pulls in these toxic metals etc from the soil in great quantities so by using tons of mass to produce a bit of oil, the concentration of toxins is far greater. And are these grown in organic soils, free of chemical herbicides and fertilizers? Imagine the dangers if high-production-hemp operations use the same radioactive fertilizer that tobacco companies do. By comparison, resin-rich cannabis provides a great deal more cannabinoids terpenes flavonoids in much smaller amount of mass. Enjoy. I knew this type of report would come out sooner or later regarding these groups.