I need to look at the V3 coding to compare but you are aware that the matmatic script generates material based on node setting encoding.  And certain references to one character may not match another (i.e. material naming convention).  If you are interested in creating texture, matmatic may help.  But if you are interested in controlling texture output (regardless of model, prop, clothing) then I would highly recommend Versatile Shader System by Bagginsbill.  You have direct access to node manipulation with far better results and less time.  Once VSS Pro gets released, you never have to enter the material room again!

Also, maybe you can elaborate further what your intent to accomplish using matmatic.  It could help isolate your problem.