It seems that everyone is talking about the performance of the AT. But "Theory crafting" how good can the water proofing be? We know that with the top of the line water machines. Your paying for the waterproofing. Dive depth of 250 feet. Yet most people that use these dive machines are only wading with them. And sometimes they leak. So my question is how good can the water proofing be on The AT? Rain, splash proof with an occasional dip in the water OK. But you know as well as i do some people are going to submerge them for hours at a time. I know the high end machines are "Tank tested" to ensure the water proofing before going out the door "more on the cost". Is Garrett going to tank test every AT?