If you read the huge sette thread you will see almost everyone has had static issues when they bought the machine, especially with darker roasts. If you grind enough, overtime the static is gone.
The humidity in the house will be an issue especially if you are walking on carpet and touching the grinder or porta, but essentially it needs a few pounds of coffee to grind before the static reduces and eventually diminishes.
I used to do rdt and i have stopped doing that and i get zero static.
Good Coffee: Technique/Knowledge > Grinder > Beans > Water > Machine