G8 textures may be closer together? I can't say for sure, as I haven't tried. I've tried using G3M textures on G3F, but there are some differences in the map; it leaves large and obvious gaps around the "seams" on G3F. At any rate, using the BOY-GIRL morphs has worked well for me, because in addition to textures, clothes, etc, I can also use all the morphs I have for G3F (a lot more than I have for G3M).