Orange course at Blue and Grey. Concentration was mostly OK, except for leaving C6. Just couldn't seem to follow my compass. I was still confused as I approached C8. But I stopped, and tried to figure out the contours. Obviously I was wrong, but I had a plan to bail out to the trail, and I executed it.
Looking over the whole course, I seem to have had difficulty keeping a straight line when it was called for. I tend to drift down hills. Need to work on that.
I don't remember stepping on a rock, but my left arch is hurting now that I'm home. Hope ice is all that is needed.