You apparently also subscribe to the idea that toroidal-based LPS needs Vibration Isolation. Yes, vibrations can cause electromagnetic induction in existing magnetic fields, per theory. One assumes that is the reason for the 4x "springy footings" under your Supercharger LPS.
What is the purpose of setting your re-cased WiiM directly atop, separated by thin pieces of adhesive foam?? All the large Hi-Fi Manufacturers make great deal of the rigidity engineered into their products, specifically to eliminate any vibrations transferred from the large toroidal power supply to the various electronic components. But, isn't that exactly what you've setup in this mounting choice??
(sorry, just had to poke the bear...)