hey,
I have seen many. Seems to me those flying wings have some kick to them. Their streamline and low drag design makes them optimum for fpv. The zephyr II has quite a fan base. The guys over at crashtestrc make nice wings. Mygeekshow on youtube built a good one called the raptor. I have a small teksumo 900mm wing i play around with short range fpv. She flies about 50-70mph depending how shes loaded so imagine how fast a larger wing would go. If your new to fpv, go with a bixler or skysurfer. They have always been a good starter platform. Wings are point and shoot. Stable when dialed in. I do believe the zeph has it all.