This may fall into the category of over-thinking, but it recently occurred to me that there might be some value in trying to keep the pipe level while smoking, as well as while lighting. Any of you ever put any thought into such things? It seems like it would contribute to a more even burn and building of cake. With that said, it's not always the most comfortable; it's nice to just let the pipe hang from your jaw lazily. Worth the extra effort or screw it?