Jafox,
Calling the Sylvania VT-99 trash is really crazy, unless your system has to have one particular tube to shine. I settled on the National Union VT-99 in combination with the staggered Tung-Sol rectifier because the overall sound had better extension and treble. But to say the Sylvania is flat and distant is super surprising, but that very well be the case in your system. In mine the Sylvania sounds great, a bit more chill but still damn fine and 3D sounding. The Tung-Sol VT-99 has a more 3D/holographic presentation and just as extended than the Nationals in my system, but is a bit lean in the mid-range. To my ears, all the VT-99's I tried were pretty darn good in the Big Six, none of them were "trash". The rectifiers make a contribution to the sound as well so Matt should try that too.
Goes to show you how differently we all hear...