Interesting thread. I think most people carrying $1500 in cash would would keep that money zipped up or deep inside their pockets. Losing that money would not be good.
Yet sending a $1,500 AC out a mile or two where they can't see it and may actually lose control? No problem!
I'm a sissy but a happy one. Once that thing reaches 600 feet, I can't see it so back it comes under my control.
Going back to the original post, it most certainly sounds like interference. I've experience that myself. I just move to a new location and all is good. I love my P3S. Less is more, I think.