Hello Oliver,

Thanks a lot for your appreciation regarding little suggestions I gave you.

Unfortunately right now I'm very, very busy at work and I can't provide a decent help.

But I strongly suggest you to start a new topic in 3D-Coat forum and, if you can, to upload there your obj files.
3D-Coat forum provides a great support from Pilgway's developers and from many advanced users.

It's not necessary to upload ultra-high tessellated versions of your objs.

There are too many variables that come into play when it comes to importing for Per-Pixel-Painting in 3D-Coat,
and the experience of advanced users could solve your problem.

Here's the forum url : http://3dcoat.com/forum/index.php?/forum/4-3d-coat/

Have a nice day and best wishes for your job.

- Marco (mkdm)