So, I have some questions about the capabilities of wireless charging on my GS4. First one would be, is there any specific charging pads that are high and above the others that you guys could recommend that aren't to expensive? I was looking at the official Samsung one for my phone, but I really don't want to have to buy the back that makes the phone bigger. So do any of you have any pointers on the cards that slip on to the phone under the original backing and what makes some better then others, and which pads they work with? Sorry I'm so clueless. Thanks Guys!