well i come from england and one has to smoke hash all the time. The problem is what would one describe as a good chunk. If one has ever seen an OXO cube, an 1/8th is about that size, but about half again. Probably bout half of that will get you a nice buzz. Or so ive found. Screened pipes and rolled with tobacco are pretty mcuh the same...you will need less to egt stoned with a pipe