forgot to say...

creating tiling transmaps, too, for lacey textures non-edge related...

and

with the shirt, if i wanted to be super obnoxious about it, and yes, i've done this many times on stuff i own, i could zone out the arm areas i mentioned to Left and Right, so that way i don't need to be beholdened to any symmetry if i don't want to be...

thus CapSleeveL, CapSleeveR, ShortSleeveL, ShortSleeveR, etc...