Past indicators don't necessarily guarantee future results in baseball, but take this into consideration:
Wolf has given up 18 runs in his last 12 IP at Pittsburgh, and 12 runs in 10 IP so far this season.
The Pirates are still at + money right now. It may be a "trap" line, and granted the Brewers are the better overall team, but with Wolf's recent history, I'm taking Pittsburgh tonight and not looking back.