Pretty cool script, I see you were at this for awhile, I'll try that today also. And yiannisk, I hear ya man! haha I think I need to spend more time in the community again, I'm losing touch! :) Cheers!
Besides being able to do all that complicated steps with just a few clicks in Max2010, Blender, zBrush or Mudbox there is also a script in TexTools that automates in a very similar way what you did in that video (uses a 2nd UV channel though). it is in the floater. [ame]…