Try the IV and see what you think, it's such a strange fish with it's interaction that I rather you try it in and out and see how it response after 15 or 20 minutes. Many have reported about the IV and Ref One filter working good together, but I have never tried it. Try the first outlet near the power cord inlet and see how the IV response. Keep in mind the RPC is just like your Reference cords and require 30 to 35 days before sounding at almost it's best...a full break in is around 45 days give or take a day.
The components can be installed in any plug and sound identical.
The RPC already provides good warmth, I don't think installing the filter at the end is a smart move...might be too much of a good thing...install in the first outlet as recommended.
Send initial report day 1, 10, 15, 20, 25, and 30. Have fun and enjoy.