Anthony,
Are you sure you're using the correct puck for your version of the NEQ6???
From memory, around 2008 SW made a change to the mount design which changed the taper region of the puck fitment.
https://www.firstlightoptics.com/adm...ment-puck.html
I've been using a C11 (with25Kg of counterweights
) on an Geoptik (similar to the ADM) saddle fitted to my NEQ6pro mount for the past ten years. No issues, no drama