I haven't really had any dramatic 'keelbusting' since Vanilla. In GWX, the keel sometimes breaks and she splits in half, but it is somewhat subtle - the middle just sags and then she sinks. I remember that back in o'le Vanilla, when you sent a keelbuster under the center section of a medium-size ship, she would snap in half and the two ends would surge way up in the air- like this:
