Mate, on runs that short using balanced cables will make no perceivable difference!
There’s a thread on here somewhere about this, if I find it ill copy in the link.
As far as I’m aware the Elektrons are not truly balanced anyway they’re kind of pseudo balanced.
Hot goes to tip, cold & screen are wired to ground.
This is common among manufacturers as it allows the device to operate in balanced or unbalanced situations easily.
To hear for yourself, hook one machine up with a balanced cable on one side & unbalanced on the other then pan. If there’s a 3dB (approx), drop on the unbalanced side then they’re are indeed truly balanced, but I seriously doubt it!
In fact I’m gonna have a play with this & see for myself.