Ok, this info is from my psyc. teacher at a college I attend, so its valitidy is up to you. He claimed during a discussion on various drugs that weed has a very unique tendancy to cause a reverse tolerance in habitual users. Basically after long use, not sure of the time frame, maybe years, but anyways it eventually takes less and less to get high, you just can't get as high as a noob would. Something to do i believe w/ the fat solubility and extreme habitual users. I've noticed it at around 1.5 years, now been 3 and i was curious to know if anyone else had the same experiece?