Export normals makes no difference. If I import, for example, blMilWom.obj (around 5 meg) into Hex using default settings (uvs and normals checked), and export the file using hex, the file size was 142 meg. If I export with 'Merge equal uvs' checked, the file size is around 38 meg. If I save the hex file as a .car, open in Carrara, then export as .obj with no material, the file size is around 6 meg, which is reasonable. Not good, but reasonable. I haven't had Hex long enough, or had enough time to fool with it very much- but I seem to remember having problems texturing in Carrara if I exported a Hex file as .obj. Seems like I had to save as .car to get it to work right. Hope I'm not rambling here.