Smoke one grav or bong rip of Lemon Diesel or Green Crack, if you are not a heavy smoker, it will be too much...when I smoked daily out of a Six-Foot Bong, one grav of Lemon Diesel was "too much". I had psychedelic trails within five minutes of ingestion. I have also had haze varities (especially with the old school haze hybrids) that are simply too potent, where smoking more than a couple of hits renders extreme psychedelic effects. On the other end of the spectrum, I have had Indicas that are simply so potent that anything after one to two hits puts you to sleep.