So I tried my new DH medium cones (got for $35 including shipping from a shop listing them on USAM) over the weekend. I used them together with the Golden Sound DH squares under my Herron VTPH-2A. I have to say...really positive impact on detail, clarity and depth of soundstage! I'd say the results were most comparable to finding really good tubes to go with your favorite analog gear. Thanks for the ideas borne from this thread guys ;-)