He does the reverse bias thing for the most part, especially early. He glosses over the controversial (didn't want to talk about the Shiel hit until it had been brought up a couple of times by his co-commentators) but late and when chips are down he barracks for decisions.Surprised with some of the comments about Brayshaw; I reckon he hides his North bias pretty well. I'm not necessarily the biggest fan of him in general but I've heard him commentating several Essendon/North games now and bias is not something I've ever noticed from him.
That's only natural and ranks very low on the scale of floggish things he does. Sums up how poor sports broadcasting is in this country that club presidents can have such a role.