It's both. I can export the GSAK info to Mapsource or send it directly to the GPS & the result is the same.
From what I can tell (and since I'm new to this I could be way off) in order for a geocache waypoint to be listed in the "geocache" section of my 76CS, the waypoint symbol needs to be whatever I use in the setup. Right now I have the unfound geocache symbol set as the unopened chest and the found geocache symbol set as the opened chest.
In GSAK I have it set so that a geocache that's marked as unfound gets the geocache symbol and one that's marked as found gets the geocache found symbol. But when it gets transferred to either the GPS or Mapsource, the symbol is not the chest. Is there somewhere in GSAK where I need to setup where the GSAK symbol definitions point to in the GPS or Mapsource?