120k per single subobject. PCS 2.0.3 imported it fine if there was no texture defined in ts7.6, but hanged when importing a .cob with a texture and any kind of smoothgroups or when saving the one with no texture. its possible that when saving into pof the bspgen has a preallocated amount of bits per subobject (and the amount of data depends on the type of polygons included...ie, smoothing data, if its planar, if its not, the rotation or such. i dont know really how pof handles that sort of data, but the pmf format handles it well). that would somewhat explain the difference between importing 18k and importing far less than it.