Hi Dave
Bruce Thigpen designed 3 adjustment holes specifically for that purpose in the Joint..... also known as the "Gooseneck".
See the linked picture.
https://photos.app.goo.gl/yss4o759RiGHtNky7
The entire arm assembly needs to be raised by that much.
Bruce Thigpen designed 3 adjustment holes specifically for that purpose in the Joint..... also known as the "Gooseneck".
See the linked picture.
https://photos.app.goo.gl/yss4o759RiGHtNky7