A Couple Little Things I'm Wondering About

"What is this obsession with technical explanations?"       Perhaps: because the OP ASKED, "And if you know do they make sense from a PURELY TECHNICAL standpoint?"         The views, discoveries and measurement methods of modern (20th Century and on) Science/Physics, regarding electricity/electromagnetism, offer explanations for what our senses can perceive.       This thread’s OP expressed a desire for such.      

To each his own experience and YMMV.  I was skeptical about cable elevators but decided what the hell give them a try . I have found they make a difference whether the cables are on wood floors or carpet. The benefit in my 2 systems was apparent right away . I'll +1 millercarbon on these statements he made.

" Greatly improve sound quality. I've done demo's. Its easy to hear "
" Improve clarity, detail, soundstage depth, and focus "
Easy enough to try for yourself. An option for you -  MusicDirect sells a few different elevators, you can select a version you want to try and if you don't hear a benefit in your system/room return them for a refund within their return period (cost to ship back is on you) . Likewise, they sell the caps so you can try them as well.

Make your own elevators out of cardboard. Take a listen. Please post results. 

Experimentation is (and always has been) the basis of scientific discovery.      It works in your listening room, as well (whatever the topic).       KUDOS, to those so disposed!