Audiolabyrinth, Your name speaks volumes for your idea that cables are the standard around which components should be chosen. Once you've found that synergy between components, any change should be carefully chosen to match the values that interact between components lest you end up chasing your tail, wondering why this or that doesn't sound right and end up replacing one component after another, screwing up the equation.
The parameters you've settled on have a narrow window to experiment with and since you've spent a small fortune on cables, anything that's changed has to fall within those parameters or the magic is lost.
It's nice to know there's another way to skin this cat. :-)
All the best,
Nonoise