The Grado is still singing sweetly. I removed the 2mm spacer to see how it would sound and I was surprised. Without the spacer I did not notice any great change in balance but a greater depth to the soundstage. The tymapni and bass drums in the Telarc "Rite of Spring" Cleveland Orchestra were both further back and more focused. I would also have to say the bass was a little fuller and more rounded in tone. Of course along with this change was my returning to the Funk Firm Achroplat which also improved the bass power.