Ok, so I use the carbonite map like a mini map. It suits my need and gives me added data that I can scroll in and out on to whatever depth I need and the map is a bit bigger than the original. I resetup my UI as some settings were causing issues with addons and one of the things I had set was that when tracking a quest the map scale would not change. I would get the little ant trail and all but it would stay at the zoom level I prefer, I have looked for a couple weeks for the setting and can not find it again.
I know there used to be a checkbox in the settings that told carbonite to not change the map scale period and my settings are the same as my wife's carbonite yet the scale changes on mine and hers does not.