I'm considering either of the mounts below. Does anyone have experience with either? Good? Bad? Indifferent? Amazon.com: InfiniApps Slyde CD Slot Mount for Smartphones, Cradle-less Universal cell phone holder with Quick-snap technology, magnetic cell phone mount: Cell Phones & Accessories Amazon.com: Mountek nGroove Snap Magnetic Vehicle Mount for Mobile Devices with Yellow Safety Sticker: GPS & Navigation I have a Speck Candy Shell Grip case on my GS4. From what I've read, I think that placing the badge between the back of the phone and the case should work fine. Maybe.