Replaced CDP w/ Transport; Now, Soundstage Changes Dramatically w/each CD. Why?

I asked how could a vibrating CD hurt the sound. 

geoffkait: I'm confused. You wrote:
   "The fluttery, wobbly and vibratory nature of the spinning disc doesn’t help at all, making the sound slower, more diffuse and more compressed". You clearly know much more about this topic than I do. 

Anybody?

StuartK, the suggestions to replace your BNC cable are on to something.

It's a crucial link. And unfortunately the state of the art SPDIF cables are expensive.

When I upgraded to the Black Cat Tron, I couldn't believe the difference it made. It was like I was only getting 60 percent of the DACs performance with the previous cable.

macdude: you may be right, but when I replaced the Heed transport with a Simaudio 260DT, the extreme variations in sound stage and overly (to my ears) analytical/forward sound I'd been experiencing vanished. All I can conclude is that the Heed is in a class, along with some DACs, engineered for maxiumum resolution. For me, the added detail it provided, although enjoyable in and of itself, compromised the system's overall musicality to such a degree that I no longer enjoyed listening. The previous owner had mated it with tube power and I can see how that would make sense. I plan to keep the Moon.