this might be all in my head, but if i get like a qp of some dank nug and smoke on that for like a month when i run out and have to get a different bag, i always get high as shit the first time i smoke the new stuff, even if it is lesser quality. i don't know if you can build a tolerance to specific strains or if i just get used to that particular high...or maybe it's a placebo effect.

One thing i am positive about is that taking a break from smoking makes smoking so awesome. If you smoke morning, noon, and night, your tolerance gets so high... I had to take a drug test for a job a few months ago and I didn't smoke for 3 weeks...when I finally did I got so baked, it was amazing. it is hard to take a break when i don't absolutely have to though.. haha