I have a Dish 500 with a two line LNBF feeding a 508 and 301. I'm thinking of upgrading the 301 to a dual tuner 522 or 625. What would be better: using a Dish Pro Plus Twin LBNF (which I think will not require me to run an additional line) or to use a Dish Pro Quad LNBF and cap off the one...
