Aromatherapy cup is for aromatherapy. You just layer concentrate in between herb, or put it in some unbleached organic cotton and load into the stem like normal.
Can anyone compare the volume between the FC-186 and FC-1000? Looking for something to compliment my D020-D for my UD. Want something with more volume for bigger hits. The peyote pillar looks like it takes up a lot of the interior volume.