Just an update for anyone wondering about their warranty service, I'm still without a replacement for the HS407C V2 they received from me on September 5. The last update I received was that they are awaiting inventory. This may very well not be normal turnaround for them as I have a feeling that I'm caught up in the change from the V2 to the X2 and they intend to send me the X2. I don't see the HS407C-X2 available anywhere for sale yet, so I suspect I won't get a warranty replacement until the first batch of those make it to the US from the factory.