I have a C/Ku LNBs. One cable coming in from each. If I stay with this setup I need to slave the S10 to the 920, correct? If I change out the LNB to a LNBF I would slave the 920 to the S10, correct. Would the new LNBF would have to be C/KU LNBF? Which ever way I go where is the best place...