My faucet requires special attention to make sure it isn't dripping when we turn it off.  Off is not in the exact middle.  You have to get the handle to the right of center in exactly the right place.  It seems defective to me.  I am not trying to use my warranty because it would cost too much to pay a plumber to take this one out and install a new one.  We'll just live with the inconvenience and hope it does not get worse.