i think it has to do with the persons tolerance

when i was a rookie it seemed every hoot made me higher no matter what and usually id run out of weed or not want any more cause i was "too stoned"

now it seems its pointless to smoke more and more it just burns your throat
i have some very potent bud right now the kind u just wanna stare at and frame and put on ur wall and never smoke and it gets me super high but after 5-6 hoots u get no higher. although every now and then from a good hoot i get what i call i go "fuzzy" literally lose control of body have to sit down or i might fall it lasts only a few seconds and when its over it leaves my boddy buzzing for about anotehr 10 seconds