I have emailed Grisa @ MGM to find out for sure if we will need the new CC_03 cable to update the 3.20 version speed controls. I will post his response as soon as he replies.
You don´t have to wait for the reply. My information is correct and you will need the new cable. That is the reason why I post this information here in the forum. It will be easy for you to order this cable so they can send you the updated esc AND the cable...