Deviating from the subject slightly...
I have built 40lb stands for my X-LS's. What is the best combination? (A1 & B2?):
A) Speaker enclosure and stand interface = 1.Spikes / 2.Rubber feet / 3.Cork / 4.Felt / 5.Something else
B) 40lb stand and wooden floor interface = 1.Spikes / 2.Rubber feet / 3.Cork / 4.Felt / 5.Something else