Is Spiking Necesarry?

What is the general consensus if any, on speakers sitting on hardwood floor in room above basement. I guess this is called hanging floor but I'm not sure. What about some kind of a damping material between the speakers and the floor?

Kalai, If your basement ceiling is not finished, you could also reinforce it under your system to make the floor more robust in that area. Just a thought. 

Moving my speakers (Vandersteen Treo CTs) on their built-in spikes is difficult-to-dangerous by myself. I cut four pieces of 2 x 2 a bit longer than the speakers are wide , then slipped one under the front and one under the back of each speaker, as "skids." This lifts the spikes just clear of the floor and makes moving them quite a bit easier.

@john_g   What type of floor do you have your Treo CTs on?