I have my TT placed on the top shelf supported by a carbon fiber BDR Shelf for Source propped up by BDR cones and pads. The rack is rock solid and performs flawlessly in my room.
BDR Source Shelf is very hard to beat. Impossible, maybe even. It does however need to be on a very stable rack. I'm not so sure the OP has such a floor. Once you do take care of that however, BDR is awesome. These the "pads" you're talking about? They're called Round Things.
https://www.theanalogdept.com/c_miller.htm