making the distinction between this type and that type is half the reason why it wont be legalised. it makes the argument in favour inconsistent "this strength is ok but not that strength" isnt sound grounds for legislation.
limiting change to prescription, change to classification and...
how does one smoke daily for both medicine and recreation, how to distinguish the two states? or is it just addition, the first one is to hold off the jitters, after that its for fun and laughs.
you're repeating yourself, Dave, thats ok the drug do that, a chemical reaction in your brain cause you to forget what you are saying :)
(paraphrasing TheStreets, The Irony of it all)