Unlike the other bindings in our review (which all use the puck based interface) the Karakoram Prime bindings actively connect to the board (or at least the Karakoram interface attached to the board). Karakoram asserts that this connection "takes solid board feel to another level." While it is certainly a solid and reliable connection, our reviewers did not notice it improved splitboard ride quality when compared to the same splitboards set up with Voile or Spark R&D bindings.
The Prime is most expensive binding in our review and relatively heavy. In challenging snow conditions the Karakoram interface did require more snow clearing than the pucks used by the other bindings in our a review and this hurt its transition scores.