I have a six piece set of pearls session custom series drums. I just installed a new set of Aquarian response 2 coated heads and they sound great, although I am pleased with the tone and response of these heads I dont like the fact that these drums project such a great amount of sustain. I have been able to reduce the amount of unwanted ring a little, but for recording purposes I would like to cut out as much over ring out as possible. I have used foam and tape on all of the lower heads to reduce ring but there must be an easier way to handle this problem! I have recently thought of installing the foam inserts which are usually placed under the batter side of the drumhead but I dont believe that this side of the drum is where the problem exsists, plus I don't want the tone of the drums to change instead I thought of placing the foam inserts on the bottom side? I have not seen this done before, but I have a feeling that this could fix the sustain problem that I am having.