SOLVED: current or future powertap owners may want to remember this thread.
I was cleaning my bike tonight, I had the wheels off when i noticed that the bearings on the rear hub don't seem as smooth as I think they should be. keep in mind, im no expert, that's why im posting here. The hubs have 3200KM/2000Miles on them. with the wheels off, when I turn the shaft with my fingers it's not perfectly smooth. It's hard to describe what im talking about but it's a slight "bump" every could degrees of turn. I can't hear any noise and there isn't any play. My front wheel by comparison is super smooth!
again, its very minimal I'm not sure if this is just a characteristic of the powertap hubs or something else.