I haven't noticed my tolerance for smoking it being affected by my eating it, at all. I've been eating a couple of super potent brownies every day for like a year now, but when I smoke, it hardly takes anything at all to get high, which is why an ounce lasts me two months. What I have noticed is a slightly higher tolerance for *eating* it, but even so, two killer brownies still pretty much knocks my socks off for hours.