I have a ND filter (10-stop, 100mmX100mm square size) with a filter holder. The filter holder (similar to LEE or Formatt-Hitech holders) connects to the camera with a screw-in adapter (77mm and 82mm). This particular adapter has a rotating element which I guess is for circular polzrizers. With this design, I have to stack the ND filter on top of CPL. 

My question is, is it good to have such a set up (CPL before ND filter)? Or, it should be other way?