Why not use a piece of silver wire instead of a jumper cable?

Hi all! I seen a lot of comments about the quality of the speakers jumpers and how some people replace them with a piece of speaker cable. I replaced the speakers jumpers with a piece of silver wire. I can not said that the difference is notable right away, except in some musical passages where with the stock brass jumpers I could heard some harshness. To my ears with the silver jumpers the upper frequencies sound a little silky, not a day and night difference but still worth the change.

Has anyone replaced the stock jumpers with a silver wire?

Raul