There are still +7.5's in lots of places, I just saw 3 books right now that are.
Trends:
Play ON New York when Away vs Miami: (17-7-1) Since 1997 [1992]
Play ON New York when Dog vs Miami: (8-3-0) Since 2000 [1997]
Play ON New York when dog by 1-5.5 vs Miami: (10-4-1) Since 1997