I hope your Whisper with tuning ring can compete with Stealth V18 in some areas. If it does then it is a great bargain, and you could have top-grade Tomahawks or even Wagyu every week. I have a Stealth V10, and I really like the sound. But in my system the AQ Dragon is the winner. Of course, V18 is a few grades higher so I have no doubt it is the best out here. But I really do not think I will spend more than a Dragon on any cable.
After I removed all the dust caps (or noise stopper as some called it) on non-used connectors, my system sounded quieter and more three dimensional. I am going to re-try some of the tuning rings to see if they make more difference now.