Thanks Jim and digi. I rather completely forgot about that thread.
After another review of The List and spotbeam maps 3 and 4, it appears the satellite hasn't been rotated by very much. Spotbeam 4 for Washington DC is listed in The List as serving all the way south to Manteo, NC, and north to Buffalo, NY. The look angle makes the spot on the ground very long. I don't think it needs to reach much farther than the existing map to reach Buffalo. Most of the rest of NY and CT are still on spotbeam 3. Another possibility (other than rotating the satellite) is to make the relevant transponder for Buffalo a little hotter. Isn't that a tunable parameter on E12?