Id say its definatly more potent...this past summer, I finally talked my mom into smoking with me; she used to quite a bit back in the day....anyhow, she took only a couple medium sized hits and was out of her mind....she threw up and was so high she couldnt do anything

ive gotten that way before too when i was a much younger smoker smoking too much, so it was really weird to see...but i deifnatly think pots gotten stronger