I'm not quite sure where you get that. A strongly consistent system requires other database peers to lock on writes, which isn't needed for eventual consistency

I'm not quite sure where you get that. A strongly consistent system requires other database peers to lock on writes, which isn't needed for eventual consistency. See http://aphyr.com/posts/313-strong-consistency-models http://aphyr.com/posts/313-strong-consistency-models for some great descriptions of how it works, he is quite the expert at testing these things.