The free HiroGens by Adzan are made to fit Hiro 3. But when you buy Channing's expansion pack, there are files in the Pose folder that allow you to fit it to other figures like the Vicky males. You may need to play around with the XYZ trans dials, too, but not usually if you've injected the proper fit pose. And the expansion pack also has extra shaping and positioning morphs to get him "ready for action".