Townshend seismic isolation made a pretty sensational impact on the sound quality of ML5 speakers at the factory. So much so, Mike designed (with help from an engineer) outriggers and springs under his nearly 200lbs floor standers. I'm not at all surprised that the super plus has a positive effect if it's providing vibration control to the speakers.
Magico and Symposium
Just put a Symposium Super Plus under my Magico Q3s.Im using the unit with Copper spikes as i have a carpet/wood/concrete floor.First you must remove the stainless steal spikes then place speaker on Symposium platform. You will get better bass depth and detail,better stage and more information detail.This will work under any good floor standing speaker.