The thing about it is this, before all of my gmaps i have like 4 or so applied image layers that have the black background in it so I would have to remove those images and then change the background then go back and redo my applied images (sharpen, blur, burn/dodge, etc...)
I know redoing a couple of layers where all I did was sharpen and blur isnt that bad but still a pain at the time I was doing it...
When I get off work I'll try and make something showing all of the layers...