Everyone seems to like Shigo. I have meet him myself on a couple of occasions.
Touching trees is a really good idea.
It speaks to me of taking the time to take a closer look. To examine and explore. Certainly the inability of trees to repair damaged cells leaves in a need to avoid purposely damaging cells. Yet we prune away poorly formed and weekly attached stems, intentionaly creating small wounds in order to prevent the occurence of failures that will bring about larger ones. By the way I tried the using the screen I mentioned in my earlier posting.