Calloway, I think the Ultra Fives having five of the "technology" units versus one in the Ultra SSs, is the key. The Five have five time the vibration absorption. The LPI record weight is really the Five without a base. It is not better science, it is more of the same science.
I should add that four Ultra Fives under speakers or components than three. I am told that five sounds even better. If you try four, you need to make certain that all need to be in contact. This is since three points define a plain, so one is likely to be too low.
I have used them on carpeted and wooden floors with no apparent differences. I think the weight and the weight of the component, plus the conversion of vertical to horizontal motion that is turned into heat works on either.
