Hi... looks like a nice system. I have just a couple questions.
What tube amp are you using?
And secondly, is there no platter mat for the VPI aluminum platter? If not, I would try a mat with damping properties. It might surprise you. If you do try it, shoot me an e-mail and let me know which mat(s) you try and the results. Keep in mind that you will have to readjust the VTA of the cartridge for the added thickness of the mat.
Frank A