[Gordy]

Don't forget, you can probably double your options by adding an LC (long crystal) to the end of those grades 

[bgewaudio]

Does skin effect produce any sonic discrepancies?

[Captain Humble]

Does skin effect produce any sonic discrepancies?

If you're referring to a sleeving that sometimes surrounds the insulated wires apparently it can.
I ordered and received a pair of 16 foot Reality Cables.  Prior to ordering I asked my wife if the basic red without sleeving would be OK.  She said she would rather me pop for the black sleeving that's optional. 

When I placed the order Gregg said that he could hear a difference between the sleeved and unsleeved.  No sleeving is better. He also said that the off white cotton sleeving sounds better than the black sleeving.  Sorry I don't remember what black sleeving is made of.

I don't know that I would be able to hear the difference but I went with the expert, bought the standard red without sleeving and saved a few bucks.

Here's a link to his site that shows the standard cable and cable with sleeving.

http://www.realitycables.com/products_pricing.html

[bgewaudio]

Your referring to dialect, used to minimize capacitance.

 The "Skin Effect" basically occurs in larger conductors where the signals (typically higher frequencies) tend to ride along the outside of the conductor as opposed to utilizing the conductor as a whole.

There has been claims made that skin effect does in fact cause audible differences.  I have my own opinions on this, just though I would see what others think.

[bgewaudio]

The sonic differences you claim with using different dialect materials will in in fact alter the sound to some degree.  By doing this, it will either increase or decrease capacitance in the wire that will ultimately change the sound.

Some manufacturers will actually change this to make their cables sound a certain way.