The V4 to G2 converter product I purchased creates new material zones on G2 which I assume allow the V4 original textures to be loaded directly onto G2 rather than bake a new set. How this is done I don't know, the mechanics between the obj, body part and material group escapes me. So the thought was once the G3 figure was exported could a similar approach be used, there would be two parts, the exported textures and new mat groups for M4.