Yep. An underrated part of what makes Fed so great is his superb planning/scheduling - adequate rest - lack of injuries - longevity. Halle finals loss insignificant - surprising Cincy win gives him a cushion. Thought Courier's convo was revealing in the philosophy he takes - always thinking in the long term allowed him to pass up what I'm sure was very lucrative appearance money - target the Grand Slams and the marketing dollars would follow.
He's just smarter then the rest is the real key.