Jtwrace,
You have a beautiful, brand new component, made with advanced, top quality parts and materials that many would be ecstatic to have. It's like having a new, super hot girlfriend who turns heads on the street, and asking your friends whether she would be better with DD rather than D. I'd myself would enjoy her first just the beautiful way she was before asking for suggestions about improvements, if ever.
Directly on point here, I recently spoke with a successful tube power amp designer and asked him why he decided to go solid state with his phono preamp for a change. He said he was never fully satisfied with the prototypes, and he added that many of his clients who had great sounding tube phono preamps were nonetheless never fully content with the sound and forever continued searching for even better sounding tubes. He offered this was not for him. Perhaps that's something to think about.
