Can the L and C outputs of a Invacom LNB be wired out to a sw21 switch at the Dish, and then to a DiseQC switch? Will a Satellite Receiver ie. ViewSat recognize BOTH L and C thru the sw21 as long as the Legacy Switch option in Antenna Settings is set for sw21? Or do you have to wire out Both L and C separately to the DiseQC switch? (I only have one downlead to the sat receiver).