Patio Pavers under Finite rack??

I have the Finite Element Master Pagoda rack with the cerabase footers sitting on carpet over a cement floor- The rack seems to have a little wobble to it when you slightly push it( checked and it is level) and also has a little vibration heard when I tap on a piece of equipment-
So my question is if I put a 2 inch thick patio paver under each cerabase footer therefore removing the them from the carpeting would that solidify the unit??- Or should the rack move slightly when pushed- thanks