Re: Scalli Mod?
The Tangiers bowl was literally made for Tangiers Tobacco. The scalli mod makes so it is much more user friendly with any other kind of tobacco. The creator of the Tangiers bowl is a smart guy, and knows his tobacco like the back of his hand, and was able to craft a bowl to perfectly capture the Tangiers smoking experience.
The Mod was invented by a third party. This guy is pretty famous for his Hookah innovations, most of which are extremely useful. The mod re-directs smoke flow. I don't knwo the specifics, I don't know of anyone that knows exactly why the mod works so well... but it does.
I always use a mod, for every single session of non-Tangiers tobacco.