What does selecting "none" queue do?

Question

I'm trying to shape traffic in pfSense.

The question comes up of which queue to assign traffic to.

What happens if i pick none as a queue?

In the end, traffic going out the link is under the control of a traffic shaper. In the end, the traffic shaper is going to have to handle this traffic. What does the traffic shaper do with none traffic?

• does it count as super-high priority traffic, bypassing all shaper rules and being processed before any traffic that has been assigned to a queue?

• if that is the case, how is it different from assigning the traffic to the qLink queue?

  

• does any none categorized traffic get sent into the default queue, processed as though it were it were uncategorized, and fall into the default queue?

• if that is the case, how is it different from assigning the traffic to the qDefault queue?

  

In order for traffic shaping to be effective, i need ack packets to have super-super-super low priority. How do i do that when the UI won't let me assign the ack packets to the super-super-super low priority queue?