@uberwaltz,
Regarding compatibility.....before I installed the Omega+ mats in my breaker box, I already had Bybee iQSEs inside all major components and 8 HFC MC 0.5s. After reading those two products weren’t compatible with the PPT stuff, I removed all of the HFC stuff to great effect. Dynamics increased. Not to say they are inferior, just not compatible.
The other day I removed the iQSEs out of my phono stage and installed Herbie’s tube dampers. Could tell a slight increase in dynamics.
Last evening, was fooling around with the two iQSEs I had extra and began placing them everywhere in my system. Could easily tell they had a darkening effect except when I put them on top of the VPI motor housing.
Lots of fun!