Using Teamed NIC with Hyper V, and a WS2016 VM

I have a server running Hyper V 2016, which manages a WS2016 VM . The server has dual ethernet NIC's which I was looking at teaming up to improve ethernet performance on the vm. I followed the procedure in this article 

https://docs.microsoft.com/en-us/windows-server/networking/technologies/nic-teaming/create-a-new-nic-team-on-a-host-computer-or-vm

The procedure worked fine for Step 1, items 1-18.

In Step 2 where you set up the NIC team in Item 2, I see the two virtual switches setup in Step 1 (not the two ethernet nics) I try to add these to a team but I see an invalid parameter error.

I checked on this message, and this was caused by trying to team the ethernet adaptors which had already been associated with a virtual switch, which cannot be done. 

This implies the procedure shown in the article is incorrect.

What is the correct way to set this up ?

Thanks

Tony