Hillhopper- nice of you to share what you are doing. I was impressed with the work you've gotten done so far. your 3 year old roots are looking very very nice, wish mine were that big.
I don't have the Ca in the soil that you have, however am working on it. All those limestone rocks are a real assist I'm sure.
It's nice to see some one who has their dog out. Mine goes to work on the hillside with me as well.
My 2 year olds have the hair roots like yours, however are like half the size of yours. My soil is denser, having a lot or organic material still in it from the Rhododendron thicket that was there. However my patches have that same cleared look that you have. That's gotta be a great thing down the road, to have it that open, with the proper amount of shade.
My first planting suffered from the poorest emersion , it was that first year when quite a few of us had very green seed. so, I only have a few [less than 200] plants that I think are 3 year olds. However, these seem happy enough.
Again, very impressive endeavor you have there... and a source of inspiration as well!