From the top of a cliff in northern California, I set a personal distance record of more than 4,800 feet (using a stock Phantom Vision 2+). (Unfortunately I forgot to get an iPhone screenshot to prove it Just a few hundred feet more, and I would have passed over the fishing boats that I was chasing! (Warning: Long video (7min 25s). This is a "Watch It On A Big Screen While You Sit Back And Eat Dinner" type of video.) http://www.youtube.com/watch?v=OMQ0llRHFOI Ross.