DishPro uses bandstacked technology, meaning that both polarizations are present on one cable 100% of the time. Your receiver does not need to switch a DishPro LNB from right- to left-hand polarization when you change channels, since both are already present at the receiver all the time. This means changing channels should be faster. (I haven't timed it.) Also, the DishPro LNB is intelligent and features two-way communication with the receivers; this speeds up the Check Switch diagnostic considerably. Also, it's quite a bit easier to add more receivers and switches with DishPro LNBs since you only need one cable per satellite location. (Legacy LNBs require two cables going to a switch, one of which always carries LHCP, and the other of which always carries the RHCP signal.) Finally, since DC voltage is not used to switch polarizations, you can put a DishPro LNB at the end of a 200' cable. Legacy LNBs at that distance would suffer such a resistive loss of voltage that they probably could never be switched into LHCP mode.