I'm playing a level 1 brawler in PFS. As I'm looking ahead to Brawler's Flurry, I'm curious about how two-weapon fighting penalties are applied.
If I'm holding a heavy steel shield in one hand, and I use Brawler's Flurry to attack with two unarmed attacks (e.g.: my other hand and one of my feet), is my penalty -2/-2 because the two weapons I'm using are light, or is it -4/-4 because I'm holding a heavy object in one of my hands? If I carry the heavy shield in my main hand does that make a difference in calculating these penalties?