Probably....but on my BB30, they were sluggish to begin with and now spin like a ceramic......see how they go after a run-in period. Besides the brain trust on ST would say that you are not losing any watts because of it, based on the fact that you gain nothing from a free spinning ceramic versus a regular BB!?

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http://theworldthroumyeyes.tumblr.com/

I feel like I recall another thread on a similar issue... and I think the conclusion was that a lot of BB's will only go around one or two revolutions until they're extremely broken in; but even brand new, under load they spin very smoothly, so the bearing drag that you think you might be getting isn't actually there at all.

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MS: Exercise Science
Your speed matters a lot, sometimes you need to be very fast, where sometimes you need to breakdown your speed.

I had the same issue, pulled the cranks, grease, reinstalled, didn't tighten them as much, and they were good.