No leakage?I have two on the way from Josh Ronish at Dragon Briars. Anyone wondering can find videos on his instagram page. High powered magnet connection between stem and shank rather than a mortise/tenon setup. The pipes are also cool because the magnets make the pipe magnetic in general. If you need to set it down you can just slap it up on the side of a tool chest if you so choose.
In addition, the lack of a tenon allows one to remove the stem from the pipe while smoking if you should need to, without risking any kind of damage or deformity to the stem.