Every referee has certain tendencies. Some are striking; in this column we try to profit from those.

We went 2-1 again last week, improving to 7-5 on the season. We cashed the Under in Buccaneers-Saints and hit on the Chargers against the spread, but missed on the Seahawks-Giants Over.

This season, Joe Gibbs (not the Hall of Fame coach, the NFL referee expert who tweets @NFLrefstats1) is collaborating with SportsLine to provide weekly officiating angles. He analyzes the NFL referee assignments from the moment they are released each Tuesday.

Before you make any Week 5 NFL picks or NFL parlays, you need to see what Gibbs and SportsLine senior analyst Larry Hartstein have to say about the officiating crews' tendencies.

We can tell you Hartstein and Gibbs are taking the Steelers (+4.5) against the visiting Ravens despite Baltimore looking like the clear AFC North favorite.

Referee Carl Cheffers will officiate this bitter divisional rivalry. That could bode well for Pittsburgh.

"Since 2016, Cheffers has officiated 13 divisional games in which the home team was an underdog," Gibbs noted. "The home team went 9-4 ATS in those games."

"And over the past 10 seasons, the Steelers are 9-3 straight up and 7-4-1 ATS with Cheffers officiating," Gibbs continued. "In six of those games, Pittsburgh was the underdog. The Steelers went 5-0-1 ATS and 4-2 SU in those games."

Hartstein also is sharing key officiating angles in Cowboys-49ers and Texans-Falcons. You need to see this key referee data before locking in your picks!

So which side of Cowboys-49ers has the edge? And what other officiating edges can be found on the Week 5 slate? ... Join SportsLine right now to see Larry Hartstein's Week 5 NFL officiating trends, all from the expert who went 53-34-3 in the SuperContest last year!