This was a steady jog, about 9:00 pace, and I don't go that much faster on rocky trails anyway (except maybe on this run). I also don't trust my legs as much at 12,000 feet.
The wide video angle and high vantage point has the effect of flattening out the terrain. I remember it as being more bumpy, and quite often those were steps I was running. Need to tilt the lens slightly counter-clockwise.