Thanks for the comments. I know it was not going to work exactly like I had wished, but I wanted to test it. I'm not out to bash DJI - in fact I think that any follow me function is absolutely fantastic, but V1 FOR ME isn't practical.
Firstly, I was riding the bike painfully slowly initially to test it. 5-6mph at most.I usually ride at 17-18mph but this was just a field test. I had done some preliminary tests in a field walking and running and these showed promise, so I thought I'd take the bike out. What I want it for are aerial shots of MTB riding alongside an off road track and also for a separate job involving mapping a local canal for about 25 miles.
I tried four different scenarios; low level with it ahead of me about 2-3m off the ground (major fail as it couldn't keep a steady course at that low level), ahead of me at about 12-15 metres, ahead of me about 25m and then behind me at about 15m up. 12-15 m cleared all of the obstacles shown in the video, that's why I went up to that height So no worries about crashing into trees, lamp posts etc guys!
The ahead shots were useless; I agree that the technology is called 'follow me' and that it's new technology, and that it needs strong GPS to track.I was using an iPhone 6 as the FPV, until yesterday, Apples most up-to-date phone.
Still, if the phantom detects movement, be it in front or behind the subject, shouldn't it react the same either way? The problem is that I don't want to be in the shot for the mapping job, and I definitely DO want to be in the MTB shot.
The major problem that I saw was the yawing when following. It was just too severe for the footage to be of any use at all. And in the close up parts, it couldn't keep up.
Sure I could bounce it up to 50m and I'd be in the shot, but I'd be a pinprick in the frame. So that's why I think it's nice, but for me, a gimmick.YMMV.