Re: tangiers on modern ceramic
Try packing tight around the sides and looser in the middle. Poke a lot of holes in the foil including through the holes in the bowl from the bottom.
There's nothing wrong with smoking Tangiers from a traditional bowl as it was done that way for a while until the phunnel was made, which wasn't intended to be a bowl for his tobacco. The cut of the tobacco actually was and still is specifically for traditional bowls. The downsides are reduced longevity and restriction in draw compared to a phunnel bowl. Tangiers benefits from an overpack in traditional bowls but you can't really do that effectively without impacting flow.