I don't understand. Are you saying MOUNT is important?
Just kidding.
I (think I) fully understand what you're getting at, and that's why I mentioned those mounts in my OP. I guess what I was getting at is there must be some point, for the gear you intend to put on the mount, that anything bigger is a waste and the gear is just right. I'm just trying to establish if that point is the EQ5 or the EQ6.
To date I have done all my research online. Today at lunchtime I dropped into a store to see these mounts first-hand. They had an HEQ5, EQ6, and a Celestron CG5. The guys in the store told me that the EQ5 or CG5 would be more than enough for camera and ED80.
Thanks for your thoughts, John.