Hmm..you didn't assign any turbosmooth modifier to your HP model. Also if you want to bake in SP2, you need to collapse the turbosmooth modifier before export it, if not SP2 will ignore your modifier stack from max.
gnoop: I'll research vertex normals a bit more and see what I get, thanks. Revel: There was originally a turbosmooth modifier on it but I collapsed it already.