I do know that when I smoke weed out of my Hookah I put a small layer of tobacco in the bottom of and right on top of the bowl. Three Reasons: The tobacco is sticky and keeps the bud from falling through the holes in the bottom of the bowl. Since its wet tobacco (hookah tobacco is marinated in flavors and molassas/glycerin) it makes the weed burn alot slower so you can light up and enjoy for a much longer time than just letting it all burn up under the charcoal. And lastly, it tastes realy good, and sometimes the nicotine can change the way the high feels. Kinda why some people I smoke with will smoke a Black n' Mild or a cigarette afterwards. As for tobacco in a joint, maybe it makes the high different, dunno never tried it that way. When I get good strains of bud nothing is better than smoking a straight joint of it or smoking it a glass piece... Ahh pure KB, nothing like it!