I spun the axle of a Zipp hub at Interbike and it felt like a perfectly worn in Phil even though it was brand new. That ***** is HOT!!!!
If you read the blurb on their website about their track hubs it says they're MATCHED to 10 MILLIONTHS of an inch. That means that not only do they know the size of the bearings down to 10 MILLIONTHS of an inch, they also take the time to sort them out and match them up.
If I thought I could safely ride 28 spokes on the street (I'm too heavy to be a weight-weenie) I would totally buy a set of those instead of the Phil. Unfortunately, I don't think I could trust 'em.
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Philosophy and feelings don't change the laws of physics