I'm curious about the newest tech if it can effectively and safely transfer RAW or JPG's via WiFi in the field. Given that the Nikon Z's only have one XQD slot, I'd like to mitigate the the chances of an XQD being corrupt should we choose this camera. Personally, I love the Z's, and have researched throughly that XQD's are very stable. Without going into percentages and complex algorithms negating the risk factor, I believe the XQD's have not been around long enough to draw a comparison to SD card failure rate. Ok, so Nikon probably will add a second slot to the Z8, because if they had done this for the Z7, it would grab a lot of market share from their current high end DSLR's. I just get the willy's thinking about shooting high end clients or weddings on one card slot regardless of the many merits of the XQD. Has anyone used the GnarBox as a back up solution? I've only had two Lexar CF cards not work in many years of shooting, so know it's a stable media, but just trying to justify the shiny new camera with the associated risk of one card.