As far as I can tell Argon fix does nothing for the clothing of the locals. The fix made the NPC Creator working when choosing a sim to be a local, but in my game at least, I still had to change their clothing to match the region I chose for them.
They were behaving correctly and appearing in the right vacation location, but their clothes were random until I changed them.
Thanks for pointing that out. Since I CAS made mine they were dressed properly, but for some reason I thought that Argon's thread said that it would fix the clothing too. I went back and reread the thread and I was wrong. I suppose the most important thing is that they behave correctly as locals, though, since clothing isn't too hard to fix.