Skate report: Heinen has something cooking with this fourth line

Danton Heinen celebrates his goal against the Capitals Thursday at Capital One Arena in D.C.When Danton Heinen decided to return to the Penguins on a one-year, $1 million contract this past offseason, he instantly became one of the few bargains they had further down the lineup. Maybe not significantly more, but there's no doubt Heinen, who scored 15 goals at 5-on-5 last season, could have gotten a better payday and, perhaps, even more job security if he'd signed elsewhere. But Heinen loves this group and Mike Sullivan.

Through the first five games of this season, Heinen looked like an even bigger bargain. He had three goals and three assists (and another near-goal in Montreal), but more…