theKidd12, I saw that, too. The average for Simmons, Massey and Cal Preps, probably runs in the 80 plus percent range (Simmons lists his percentage and maybe the others do, too), which, to me, means they're pretty accurate. Once in awhile, though, a team comes along that doesn't realize its potential until later in the season, or maybe they or certain personnel were not looked at close enough, which can affect power ratings, and they don't get noticed until the playoffs. ER might be such a team. It happened here, once.
Simmons had Clinton 3rd, in 2A, with a power rating of 127 and had them beating you by 18; Eastern, was ranked 26th in 2A with a power rating of 111, and I believe Simmons was accurate in his ranking of Clinton. Even with glasses it is hard for me to read Massey's numbers but he had you losing to Clinton by 17 in last weeks game.
By the way, Northeastern has similar numbers as Clinton (Simmons), and it's probably accurate, but I wouldn't be surprised if this is another close game.