I am trying to point at satellites 61.5 and 72.7 with a 1000.4 western arc dish, I know that you can point at those SATs with a dish 500, I think I also heard you can with a dish 1000.4, so how would I do that? Cover the 110 & 129 and put the dish scew at 90 and aim for 61.5 with the 119 lnb and lock 61.5 and uncover one of the others and screw for 72.7? If so which lnb would be used for the 72.7?