I need some advice on wire....quantity vs quality per cable

[eightbitpotion]

Okay, so I've had a little project going, and I know this isn't DIY, but bare with me because this isn't actually DIY related question.
 
I've recabled my B&W P7s.  The first cable used four 24g copper wires (6 strand) in a litz braid.  I was so blown away about the increase in fidelity that I thought "hey, perhaps this is a significant bottleneck....let me make a thicker cable".  So the next cable was four 18g wires in a twist (litz braid won't fit in the earcup).  Now I was a bit discouraged, but then though that I could pair up the 24g to total up 18g (technically speaking).  It worked! So I'm sitting here listening to my P7s with a 18g equivelent cable, and it sounds much better than the other 24g cable (both of which sound many times better than the factory cable).
 
So here's my question: I'm thinking about making a solid silver cable for these, and I'm debating between two theories of thought.  Higher performance at the cost of surface, or more surface?  The copper is absolutely amazing right now, and I can't think of the last time I've ever heard anything like this, but if I go back to the 24g size I can do solid silver.  I know there's science involved, so I'm assuming this isn't a debatable topic (if it is, I'm sorry... I assumed there were formulas that I just can't locate).
 
Silver is expensive, and this is a tough decision.  All of this aside, the silver would be much easier for portability (lighter in weight, less rigid etc).  I know some may wonder why I'm looking at changing anything if I think it's amazing, and it's because of flexability and weight.

 

[xnor]

The difference (e.g. in resistance) is going to be measurable but so tiny that you really shouldn't be able to hear any differences in a blind test. So tiny in fact, that the difference between the impedance of the left and the right driver is going to be many, many times larger - even with closely matched drivers.
 
Go with whichever is more practical.

 

[eightbitpotion]

  The difference (e.g. in resistance) is going to be measurable but so tiny that you really shouldn't be able to hear any differences in a blind test. So tiny in fact, that the difference between the impedance of the left and the right driver is going to be many, many times larger - even with closely matched drivers.
 
Go with whichever is more practical.

Wait, do you mean between the thinner silver and the thicker copper?  If that's the case I'll get the silver to have a thinner and more flexible cable.

 

[xnor]

I meant the difference between a copper cable and the same cable made completely out of silver.
 
With a solid 1 m cable with 1.0 mm diameter the difference is 0.001 Ohm.
 
 
Google for wire/cable resistance calculator to plug in your numbers.