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
Of course, otherwise you will live in a world of doubt, a place no audiophile wants to ever be.
The manufacturers would not make or sell them if they didn't make a difference. Would they??
Rok2id...absolutely they would...if people are told they fix some imaginary fault, and if people are willing to send their checks, there is no reason why they souldn't be manufactured. If they help your system send a check...that's what moves the economy.