Cable elevators

My system audio rack is close enough to the front wall that I just use 3M wall hooks. While trying to figure out the lay of the cable, raising and lowering it see where it would fit against the wall, the sound improved with every inch I raised the cable, all the while I was standing to the side of my speaker. 

It was so obvious and immediate even at that position. I kept raising it and found no benefit past the 6" mark so that's how I hung them (no puns intended).

All the best,
Nonoise

I once read a recommendation from Mapleshade Audio to keep cables elevated at least 8" (? it could have been 6" ) off the ground , 

@nonoise and others interested in the wall hanging Mapleshade makes good looking wall cable holders .

@vair68robert 

Thanks, I'll look into that as the 3M wall hangers do look a mite cheesy. 

All the best,
Nonoise

So, if cables touch or lay on each other is that considered to be an audiophile no no?  What is the difference between carpet, porcelain tile or wood floor or wood blocks?  The juice is what is inside the cable not outside the cable.  So how does raising a cable or cord matter?  I am not being a jerk, just trying to nderstand the science.