Lesson learned today. I didn't say I got it but I'm learning.
On my ride today, we stopped and worked on the only switch back on the trail. The gal I was with is really good at them. We decided that my failing to commit can be distilled down to this:
Really, and I mean really looking around the corner. Not just your eyes, but that subtle turn of the head that will help to bring your body around.

I worked on it, but I didn't get it. I wish I had two switchbacks in my yard to work on, one left and one right.

Irulan