Didn't notice much of a difference, sound wise. Again It is a very hefty cable, the ends feel like die cast metal, not sure if thats the case, barely read the package.. which leads me to my next part. I really can't say if it makes better connections with the inside of the jack or not, because I simply do not know by what I'm hearing. Maybe I don't have as good of an ear as I thought, ha. And honestly, I'm not going to like take the jack out and plug it in while I have the jack in my hand to see if it really connects more fully.
It is a nice cable, and provided it stands a moderate test of time (all cables have a lifespan, some longer than others), I will be buying more of these. Paid $17 on Amazon for a 10ft.