Has anyone had trouble filing the data cable? Both of the teeth on there are pretty much flat and when I compare the data cable to the charger cable (which I filed down too) they look the same in terms of height and size but the data cable still feels a bit "tight." Of course it's no where near as tight as it originally was. The only difference is that the data cable has 2 slightly raised pieces on the top/other side of the usb plug.