uhh... not hard to smoke at all. just gotta think about how much has burnt and get them to go cashed around the same time. The bowls are actually both pretty small so it doesnt really eat up alot of weed either. Why? Why not is entirely correct. Other reasons include packing different types of bud, thicker smoke if you burn both at once, packing one with kief/hash/hairs and the other with bud or any combo i can think of, confusing smaller stoners... just a general greater depth to the bowl smoking experience. from the few times ive smoked it tonight, its one of my favorite bowls to date. i always say that about my new bowls tho. pcepce