I'm going all out for wireless charging on this thing with an Air Dock for my car and a nice samsung wireless charging pad at home. I'm torn with going with the Samsung wireless charging back cover for the phone, or just a 3rd party coil that goes under the current cover. The only downfall I have read is the phone gets a tiny bit bigger. for me, I dont mind I dont use a case so a little bit fatter of a phone wont matter. But the idea of keeping the phone its nice sleek and thin shape is attractive. With a 3rd party coil I can do that. Also the coil is only $20, the samsung back cover is $30. Anyone have used one of the coils or the back cover and comment on the size, and/or the differences of the 2 if possible? Basically any sort of feedback. I'm leaning towards the cover right now since the idea of the coil seems a bit sketchy to me. Thanks for any help!