Classically, the Nordic Seas are often considered the headwaters for the Meridional Over-turning Circulation (MOC), for it is where the densest component of the Deep Western Boundary Current is formed. In spite of at least two decades of observations measuring the transport of the overflows across the Greenland-Scotland Ridge into the North Atlantic Ocean, questions exist about the reservoir that drives them. We address this subject using two eddy permitting configurations of an ocean general circulation model and the Lagrangian tracking tool Ariane to explore the Atlantic Water transformation in the Nordic Seas and its influence on driving the North Icelandic Jet. Transformation to greater densities is found to occur in the boundary currents of the Nordic Seas. These waters leaving at depth through Denmark Strait are found to do so within six years. A faster transformation occurs in a loop along the north Iceland shelfbreak with export occurring in the North Iceland Jet within one year. Despite the transformation to denser water occurring in the boundary currents, the maximum densities reached by the particles are consistent with the maximum densities observed in the Denmark Strait Overflow Water. Thus it is possible that even the most dense parts of the Denmark Strait Overflow Water could come from boundary current transformations, rather than deep convection in the interior of the Nordic Seas.