I wouldn't begin to know how to search for this here so I am posing a question. I have heard that a hookah like a pipe will retain the flavor of the last tobacco smoked in it to a certain extent. The idea being that you wouldn't want to mix flavors in an unpleasant way so it is good to stick with a few flavors or one per pipe. My Question, and obviously I know many of you don't have that problem, is Is that really an issue, is it a matter of changing out bowls or is it in the hoses or the pipe itself? I mean would I want to get a different bowl for each shisha I liked to keep the flavors truly separate or would I need different pipes?