Has anyone upgraded the wires on a Variac??

I just got a set of Joule- Electra VZN-100 MK V amps- which I love- Has anyone upgraded the cords coming from the variac to the amps- The std. ones look like the cords you get with your equipment that you never use- Just curious as to if upgrading would make a difference-thanks
Interesting design. It can't hurt to try as long as your wall power is up to snuff.