When used as feet, do the Cerabase improve the performance of the Finite Elemente Pagode stands?

yes they do

I was using 3 cera puc each under my (cd, dac, amp) units on my hifi stand.
Since I placed 4 cerabase under the hifi stand and keeping my cerapucs in place, I have a little better bass definition ( it also looks good and is easier to move if need be !!).