Well I thought that might be the problem since I posted this, so I parked the .obj and .mtl files in the right props folder and hacked the .pp2 so it would reference properly. Loads fine, no problem. But I haven't gotten thru the analyze meshes faze. Poser and the TDMT interface whites out fairly quick and I eventually have to ctrl+alt+del out of them. Now the original prop head is huge 7+ mbs. That's why I want to cull some of the excessive geometry. If you have any thoughts, I'd appreciate it.

I've gotten the utility to work fine on a couple different figure combinations. Worst case scenario, I do the whole process morph-by-morph manually. But this is the head I use on all my characters. I think it's the best on the market, just rez-heavy in places where I just don't need it.