The type of floor in your room has to do with this because if it´s suspended it vibrates and the pods isolate this. But if your floor is concrete and you don't live in a heavy traffic area or close to vibration sources it is an advantage to spike. I was using the bladder type for decoupling but have found more detail spiking to my solid tile floor. This is I think similar to what Redkiwi has found. It always depends on your equipment and listening environment been a comlex system what we all deal with considering interactions with environment and gear there are no totally correct alternatives ....
As happens with over dampening a room too much dampening or absorption of vibrations might lead you to less desirable results.
As happens with over dampening a room too much dampening or absorption of vibrations might lead you to less desirable results.