I would say yes, definitely, but sometimes no. It is important to understand that black is black, then there is gray. But for you, I would say yes, unless you are sure that it isn't. But of course I lean towards the positive, unless you are pressing towards a new cable of pure silver, then I vote no. If you want, a new cable is either the answer or not, it depends on your wife. This is very important, unless you don't care about it.