Well, maybe I'm the only one, but I'm still afraid to fly on 1.9. I'm debating putting 1.8.80 back in it. What do you guys think? The only reason I hesitate to fly on 1.9 until we get more data is that on the two flights I made with it, I noticed that the ESC's behave differently. When I go full throttle up, the motors spin up to high speed as normal but within about a second, they cut back by (what sounds like) about 30% to 50%. Never noticed that on 1.8.80 so I'm afraid they did something not so great with the ESC's.
Mike
I wish I had your choices lol. Unless it is abs necessary I wouldn't go near 1.9 (based on personal experience). BTW even the Inspires are having problems with their 1.9 FW and DJI has acknowledged it.