He's a pretty swole guy, and when he erects himself in front of the net, it's very hard to firmly grasp him and tie him up. He's very slick in tight spots too, and is surprisingly slippery for his size. It's difficult to really find a way to wrap up Big Dick Nick especially when he has to only focus on a tight box. I think that is a major driving force behind his play on the PP. He doesn't have to drive it in from the blue line, he doesn't have to chase the puck in the corners, he just needs to come from behind the net and starting ramming pucks in front of the net. Or dig out loose pucks from the backdoor.