Also about the USB port not being used. It has been known for quite some time that it just is better to not use the USB port on the mods as it is supposed to work in a pinch but I would never use it as a everyday thing myself. Especially when its quicker to just swap out battery's that are already charged on my smart charger that actually is quite a bit safer. Also yihi is smart in doing this as I myself building mods especially know how the USB port is the weakest link. I have had one of my own sx350 builds I gave to a friend have the metal USB port snap off the USB board when he was charging it and it fell over and it snapped off. Luckily with the sx350 they sell replacable boards that are pre-wired up so it was an easy fix to solder on. Some mods are not so. The USB board is actually attached to the sx350j board and is not seperate at all so if the USB snaps off the board then they would most likely have to replace the whole chip unless there is a way to resolder on a new USB port which I doubt. I had a friend also have the same thing that happened to my sx350 happen and his USB snapped off his istick 20 watt and I took it apart for him to see if it was fixable, turned out they had it directly attached to the main board in the istick as well. I personally am not going to risk loosing my sx350j upgradability to charge it a unsafer way. Because if the USB snaps off the board, the mod will most likely still function but you will be stuck forever on the first firmware, which apparently isn't that bad but I like the fact that they can update the watts and change things to the users liking. Also you would be forced to charge battery's the correct way at the point anyways.