From what we know we feel the all glass vapor tamer cools better than the saturn vapor tamer. We feel this as the saturn has the vapor go through the tube, that is then cooled by the beads.
The all glass has the air go through the small air spaces in between the beads. This allows more of the beads to cool the vapor.
We also off the all glass vapor tamer pathway that works a lot like the all glass vapor tamer, but it is a long wand filled with beads.