Hi Ryan
varregions (as well as megaregions) unfortunately dont work correct in the map display and for the moment, it looks as if this will remain like this still for a while.
Google maps (which is the architecture underneeth) needs to have same grid size for each region and OpenSim currently sends the same uuid for each position of varregions/megaregions. So there is for the moment no way to find out, how the image should be devided.
Greetz
FoTo50