bsandy, I am having a hard time following your post.
however, I don't think there is a separate production line. I believe a company could contact the manufacturer of any type of string and request specific specs (gauge, color, etc). In the case of Gaucho, I could only provide feedback to one set I tried. The coating on it was better than the coating on the strings of the Global.
Could this be that Gaucho either requested it, or after receving the string put the coating on themsleves?? I can't answer that.
Also, the Gaucho has the spiral. Again, is this something they requested from the manufacturer or once they received their string, used a separate plant for this process?? Again, I don't know.
All I'm saying is many companies that sell strings (wilson, ashaway, prince, etc, etc, etc) use the exact same manufacturer, and once they receive the string, put their own brand name on it.