One spoiler ahead if you didn't see last night's episode:
In our initial breakdown, we had it broken up into eight equally-sized squares; you know, what’s going to happen where in these final eight episodes. And in our first version we thought that Walt wouldn’t know that Hank was on to him until about the halfway point.
But as we talked about it, the more we realized: nope, it needs to be in the first one. Because we've got a shitload of story left to tell. And we’ve only got seven more episodes after this one in which to tell it. So we’d better make hay while the sun is shining.
That's why these final eight episodes move faster than any stretch of eight episodes that we’ve ever had in the history of the show. Once this thing gets going, and it gets going very quickly, as you’ve seen, it just rolls along like gangbusters. It has to because we’ve got so little time left.