Thank you for your continued interest in mapping the bandstacked frequencies. This has been placed on a low priority list for right now as bandstacked LNBFs are currently working with the microHD and so few users own a bandstacked LNBF. If single polarity scan is selected, the channels will not be duplicated. We intend on refining bandstacking transponder mapping, but have been and there are a few major microHD projects that have much wider benefit and appeal to the average owner.