Red, yes you will like Aurios MIBs under CDP, since your
marble/spoon experiment worked your AC cord and ICs must be somewhat flexible. When MIBs are properly set-up slightest
touch will make CDP swing freely back and forth, the more the swing the better. Stiff or heavy cords make MIB set-up
very difficult or impossible. MIBs are expensive but everyone should try a set under their CDP, works wonders
will very little tonal shifting, close to nuetral. Much
preferable to cones IMO.
I beleive Bluenose told us about marble/spoon/vibrapod tweak in a thread about daruma bearing isolation footers