Geoff:

I would be really surprised if an offset center of gravity on the Raymarine
scanner was your problem. It looks pretty symetrical inside to me. Two lbs
to level it out- no way!!!

But what can affect how the radar scanner lays at rest is if the mount is
not square and inline to the centerline of the boat. If it is off then the
Questus will tilt a bit to balance out.

David