Best info in the world about commercial drone use can be found by signing up for this forum. Many commercial users and knowledgeable users here. Been a member for the past 10 years. http://www.rcgroups.com/forums/index.php This thread is the most useful one since it directly covers your issue. But with 501 pages to view, use the search function. http://www.rcgroups.com/forums/showthread.php?t=1703587 After reading some of that thread, you might have to filter out the BS to get any real info, more pissed piss off users posting. BTW, I have a first gen DJI Phantom 1 and have only used it 3 times. Just never get enough time off work get use to it. Have a Go pro 2 for it.