Thanks Gustav, but really I am almost clueless on this.
If we stick on the name Pandai Saras, then we probably have a smaller problem. But once we have Pandai Mamat etc and we have to differentiate between Pattani, Kelantan and Kedah I think it gets a bit more problematic.
I agree, we can say that Kedah pieces are more rough and rugged compared to Pattani and Kelantan, but in some cases, I see these rugged keris are also being attributed to Pandai Mamat which is either from Kelantan or Pattani . Then we have other Pandai too..
As for the dress, I think we can safely guess that yours are from Kedah. The buntut that you have on your keris is very interesting.
Below is a picture of a keris Pattani sorsoran from the "Senjata Pattani" facebook page which is strikingly similar to your keris.