[Halon]

I did just do that about an hour ago actually, because I was curious. But I mean, the center piece is what seemed to move, not the big metal ring around the edge. And still, there are those 2 huge openings in the center, so I don't see what my little holes are going to do because coolant could already go through the big openings in the center. But I'll quit trying to understand I suppose, and just go drill the dumb holes. Thanks!!!!