For what it's worth:bobmcgoo wrote:Unfortunately I don't think there is any way to do this. PIMs are directly linked almost exclusively to aggression (I'm not sure what the agitation and dirtiness stats are there for but they have at most a tiny small effect on PIM numbers - in the same way the hitting attribute seems completely irrelevant to how good a player is at hitting, or how many hits he tries/gets).
Agitiation = how good the player is at agitating an opponent, causing them to lose concentration and/or give up penalties.
Dirtiness = how willing the player will use the stick dangerously or take cheap shots against opponents.
From my understanding, you're completely right - aggression is the key to raising PIM and fights.