Originally Posted by Balkan Boy
Great work, Paul.
That case looks indestructible.
You've proved water resistance beyond any doubt.
What about overheating of the phone? Being plugged in also adds heat because of the battery charging.
How about leaving it under a 1kW halogen light bulb over night?
It's a shame that Apple changes the size of these phones every year.
I use a Pelican case for similar actions.
See if you can make the rear cover from two different materials. Finned alum near the battery to dissipate heat. If it doesn't interfere with the radios.