Length of speaker cables

Mr.  dannad
It was a dubious conversation. We started out with short and thick cables between monoblocks and speakers, ended up with orchestrated BS.
You was kind enough to draw the conversation off tracks as far and low as possible. Sorry, but none of the stufe is relevant.
Just like so many with speaker cable salesman and makers, you think that snake oil is the solution. 
Well, NO! 

You should go to Snake River Audio website, his interconnects and speaker cables are hands down the best I've heard, for bi-wiring he uses a true shotgun style cable (which means no stacking of banana's or doubling up on spade connectors at amp end) his top of the line models uses three different precious metals wbt connectors, well built and impressive sound. 

Steven, really check out Snake River Audio you won't be sorry.

What about uneven length?

my amp is position at the side.
Will it be better to run a 5m on one side and 2m on the other?

Uneven length vs coiling of excess cable on the near side