He shouldn't swap to a SWM 16 as you won't have more than 8 tuners. Tech's will also install a CCK if it's not installed they won't setup the Ethernet directly to the HR34. Very few will know that it's ok but it will also impact their bottom line. If you want to remove the CCK and direct connect it you can. I haven't seen a benefit with the unit itself either way. It does however require one less device to be plugged in which is why I do it.