Slaw...sounds like you're having a good time there! ;^)
Good to hear your suspension/support updates are having the desired effect!
Agreed, the MJ albums are sublimely produced. Great sound balance, pulsating bass rhythms, with very sharp and precise HF effects.
Whenever I want to give the system a good workout I'll grab one of these : "Dangerous...Thriller....Bad...etc...I'm not fussy :) :)