karendavisbrown said:

Thanks so much, Rod, for confirming my guess. I first learned about CSAs from a workshop by Traugher in the early 2000s; must have been  BDA conference, though can't quite remember where. But, I think about what I learned there all the time.

If you have photos or would like to share your story, please let the BDA know.

 __     __  ______       _    __                  _____  
\ \ / / | ____| | | / _| | __ \
\ \_/ / | |__ __| | | |_ _ _ ___ | |__) |
\ / | __| / _` | | _| | | | | / _ \ | _ /
| | | | | (_| | | | | |_| | | __/ | | \ \
|_| |_| \__,_| |_| \__, | \___| |_| \_\
__/ |
|___/