I discovered the exact cause of crash for *MY* P3Pro incident!
I'm a bit ashamed to admit this!!! But it was indeed user error!
...during my previous flight, I wanted to land exactly where I took off from! I came down about 3 feet away from it and so attempted to reposition, got a little too heavy on the non-throttle stick, drug the throne across the ground, and flipped the copter upside down from 0 altitude. No biggie. But when I picked it up by the throne, there was enough throttle and prop RPM that it swung around on me and cut my forearm up. ( stock plastic props, 2 scratches) I didn't think anything of it, cut power, put the battery on the charger and cleaned up my arm. An hour later after battery was charged I attempted to fly again and had this incident. ( and yes, I even recalibrated the compass)
After the incident I removed the props and checked the battery/engines for RPM and noted no difference between the four. This all happened on the 28th.
So, as I mentioned before, I took this time to order prop guards, peruse YouTube, and join this forum. Well, the guards came today on the 31st ( I ordered the SummitLink kits in Red/White and Orange/Black) and I put on the white and black guards. While replacing the props, I noticed this ---
...this was the prop on the right rear motor!!!
So I went out to look!
Was the missing piece in the area of the neighbor's tree? Or where I flipped it over?
YEAH! It was where I flipped it over!
DOOOOOH!!!!!!!!!!!!!!!!!!!!!!!
How the hell did I miss THAT!?
*I'm so ashamed!*