I appreciate your eagerness to try the tweak and sharing your results I have had lots of success using rings on the Whispers and the whisper Elite power cables. I actually found the Elite the AB7050HF tuning ring you can go from warm bass thick sound with strident highs nearer the female Iec to an articulated bass with more balance at one index finger from where the cable starts entering the backshell. The number of wraps and being snugged to cable changes sound more. My rings are two inches wide by 8.25 rectangle laying flat. the sheet then wrapped snuggly in a tight ring two to three times thickness of a single sheet. It is like having an infinite selection of power cords. I credit this tweak to @aangen stealth dream loan cable! My previous attempts at absorber on cable I tried wrapping the plugs. Moving it up and down the cable really was the enlightenment.