I sent the tube directly to Vinnie so he installed it during the build. So no, I did not listen w/ the stock tubes. He did send the JJs along, and I figured it is worth tube rolling only after the burn in. Maybe I'll test it out next weekend. In addition to the Dario Miniwatts recommendation from Vinnie, I also have some 60's era Amperex tubes.
I got in about 4 hours last night, and it's been burning in for another 8 or so.