some of the poser figures vary in their groups/body part names,
e.g. apollo max and v4.2 differ somewhat from the lo-res p2 figures.
some bvh apps allow one to attach a bvh skeleton to an unrigged obj file
of the kind found in the poser runtime/geometry folder.  a bvh previewing
app might still be slow with v4.2 even in wireframe mode, due to the gigantic
number of polygons.