Ok, this may sound silly but I have been thinking about this. I have a Phantom 1 that I fly and have no problems. I also have FatShark fpv but as you know I guess it's against the law now or at least in limbo. What if someone tethered their quad and did fpv. I would think the quad could easily pick up 500 feet of strong line....thin like fishing line. Would you be in violation.? If one had to go to a spot and use fpv to frame the shot but was tethered, is that against the law. Would a tethered quad fall under the same regulations as an untethered quad. Something to think about.