You put an admirably. lot of time in this. And I thank you.
I was waiting for this, since I gave up getting an s3o unit textured.
When suddently a lot more people are like Masse and me. Spring will worry less about high poli units.
true...
some software like lightwave's origin cant be read by other software. In this case world coordinate center will be the origin so move your objects 'center of movement' to 0,0,0 of you use lightwave
otherwise just reread your 3d modelling manual