which wire for stepper driver to socket on control box

[the great waldo]

Hi Jazz
One last question (I promise) regarding wire specs, Sorotec sent me 0.5 mm wire with the set, is it worth the effort to go for 0.75mm wire. I'll stick with this machine until i'm pushing up the daisys so I don't mind putting in a bit of effort in getting things right now.
Cheers.
Andrew