Should cable elevators be used?


I read the dictums from Mapleshade and others that speaker cables should be lifted off carpets of synthetic material.
I always had wool carpets but in retirement have moved to a condo covered in synthetic berber,can't say I have noyiced any great change in my 12ft MIT or ZU speaker cables .
What's the general consensus?
schubert
a half roll of Charmin sounds the best. It increases the damping. Plus the highs are softer.
I just got some ceramic ones and thought they made a worthwhile improvement. I am currently recruiting a group of leprechauns to install and remove them while I am listening with my eyes shut so I can see if I can really tell the difference. That ought to make the blind test gang happy. Don't get the Mapleshade ones; three large Tinkertoy sticks with a napkin ring. Or I'll sell you mine if you want your patience exercised.
Of course, otherwise you will live in a world of doubt, a place no audiophile wants to ever be.