I made my UAG case work with the Samsung smart dock. I work in a custom gun shop so I just belt sanded the case. There is a good amount of material that keeps the usb connector from seating fully. I sanded down the case until it connected consitently. I did have to do a slight bevel to the top edge. I do not feel I removed enough material to affect the structural intergrity of the case or the protection for the phone. There still is a lot of material on the case.
After work I am going to detail sand it and then hit it with the craytex wheel. That will smooth out the texture and make it look more factory. I left it rough to give an idea of where material needs to be removed.
