Is Spiking Necesarry?

Helps. The little Star Sound is good under speakers. Quality of stands make most difference but wood, metal or synthetic can sound better. 

Walk them over, I have that problem also! That is lift then up a little and with one side up move them over a little. I should have said with one corner down. Easier to do than to describe. I moved a gun safe this way once.

I'm a big believer in spiking assuming you're not planting those things on some obnoxiously resonant surface. I have nothing kind to say about the absurd quack-ware products hocked to isolate or "float" speakers. The concept is preposterous on it's face. If there was any legitimate merit to such concepts, folks like Magico, Wilson, and Focal would design their cabinets with isolation solutions, not robust spiking solutions. 

Herbies big fat dots under Thiels on hardwood floor over concrete has been best in my system.  Spikes the worst.

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?