I can barely imagine what having six weeks of pieces in the can would feel like. The most I've ever been ahead was two weeks, during last year's winter-solstice sabbatical, and since I didn't do any work during that sabbatical (it being a sabbatical, after all), I came back right into the mouth of a deadline.
I know this: Having two weeks of publications set up ahead of time felt great. I bet six weeks would feel more than three times as good.