GC2s creator asserts on the GC2 forums that the Vue proc terrain resolution makes no difference at all to the render resolution for a GC2 driven terrain - it only affects the quality of the OpenGL preview.  I create all my GC2 terrains at 4096x4096 and have always left the GC2 driven proc terrains at 256x256 in Vue and they are fine.  I have tested them at higher than 256x256 in Vue and have not seen any difference so have always concluded that Cajomi is right.  Is there something I am not aware of?