Great info guys and thanks. I know I'm set up properly. Thi sis why I'm still scared to install the plinth's when they are done, lol. Richard said no cones, just put on the carpet.
My friend did a ton of testing with all isolation devices and different types of isolation work better than others with folded cabinets and others better with milled ones. He didn't do anything with speakers, but they are closer to a milled block of metal. Some companies want to charge a lot of money for special isolation platforms for speakers, but I've spoken with many who have auditioned them and felt they did no better than what we are all talking about. Many use maple blocks. I have a full woodshop and was thinking about asking my wood guy (we all have to have a guy) to cut me a rough set of slabs that would fit my components. I'd then have him dry in the kiln or possibly let em air dry to whatever % water I wanted and then mill them up and ..... not worth it right now, lol.