Silver spades

I thought I would start a new discussion regarding the metallurgic composition of spades/bananas to ask a different question.

A friend suggested I look at WBT silver spades as an option for cable connectors with the hope of "opening" things up a bit.

I have found silver cabling a bit edgy but have not tried silver based connectors.

I wonder if anyone can comment on what silver based spades or bananas ( brand does not matter ) might add to a copper based cable.