Finite Elemente Cerabase vs Symposium Rollerblocks

I have the Finite Elemente Cerabase Classic, and wondered if anyone in this thread knows the answer to my question -

These footers have a small hole near the base, with a screw poking out. What is the purpose of this screw and what should I do with it? I can just pull the screw out so it doesn't seem to be screwed in.

I believe that hole is if you want to insert the screw footers so you can connect to component.  I have symposium super plus platforms under my speakers and three sets of cera pucs - one set under each amp and another under my phono stage. I do believe still points may be a little better than cera pucs (I have 4 sets of still points) but have not done an AB on the same component.

I'm not sure what you mean by "insert the screw footers". The footers have a hole (with a screw in) on the side. I don't think you could connect a component to the side of the footer.