I currently have one S3 and two HDs. Any sharing between them is a copy. I am getting a new Roamio Pro to replace the S3. Will the interaction both ways between the Pro and the old HDs still be a copy operation or will one or both way be able to stream? If the answer is that one or both of the directions is still a copy, does the Roamio help to increase the throttling limits at all? ie. copies on my current systems barely stay ahead of playing... would be nice if the copy worked faster.