[MrForbes]

It's more of a performance concern, the less load there is in the wiring that provides power to the RC, the better. Sharing the RC power wires with the motor power wiring leads to excessive voltage drop at the RC and could cause it to reset, I believe.

So, run separate big fat wires from the Power Distribution Block to each of the load centers (MaxiBlock, ATC panel, Victor returns, etc)