Haha understandable about the reservations.
http://www.amazon.com/Wireless-Charger-Galaxy-Charging-required/dp/B00JN1ZNT0
If this is the same as your one it is 1.3mm thick. I've seen them down to 0.5mm thick. I'm going to try my case and then perhaps buy a very thin one. Thanks for your help. If it breaks or you have any developments on it I'd love to hear as it'll help inform my decision!