This thread got me wondering about my tube compliment. In the context of my system, these are the changes I made today while listening to Elvis Presley "Live From Memphis" Speakers Corner,. The tube orientation I previously mentioned had a little "spotlight" effect. I had previously used (2) 60's Seimens in V2 @ V3, then went for the Mullard in V2. The Mullards are warm with nice bass, however they are not the greatest for transparency/dynamics. This was a nice compliment to the other tubes, but too much of a good thing. Trying another Mullard in V3 produced a even warmer sound that I'm not very happy with. I then left one Mullard in V2, @ switched the others so the Tele is in V3 and the Seimens is in V1. Things are pretty nice now. Somehow I get the feeling of trying a Bugle Boy in V2 to replace the Mullard. Maybe later, will report back.