Directv 9s is going to 101 degrees, they don't have any more capacity there, so 9s can only be a replacement satellite, they have no other frequency that they can transmit from.
He is probably attenuating the signal on his birdog, I had to do the same thing on my satellite finder. Otherwise, you get to high a signal and you cannot fine tune it accurately enough.
BTW, I get 96 on the 99 degree satellite.