The directv installer told me his technical trainer said that two swm16 would burn out the E2 after a few weeks. I checked all the specs and the built in power supply has more than enough amperage. He said it would only work with swm8's. It is working great now, I just need to add the diplexers to bridge the deca cloud. I have 18 tuners right now after the recent genie addition. The installer told me he would have to mount a second dish!! I convinced him to just leave the second swm and I would hook it up. Anyone else using this configuration?