Yeah I like to stick to real short cables, although the one I’m using right now is like 6 foot because there’s a greater distance between the little shelf where I have the AR300-M sitting and the 7730L down below on a little desk. It’s a good quality cable (Anker) and it appears to charge the 7730L properly with no issue so I’m guessing it may just be one of those annoyances I have to live with. For this particular setup, it shouldn’t matter too much because I won’t have to reconnect the tethering on a regular basis.