ORIGINAL: Black Stick
How much was it and where can I get one?
Here is the best
http://www.yeoldearcheryshoppe.com/spine-tester-p-2519.html
I have less than the best and you have to convert to AMO with a forumla.
http://www.3riversarchery.com/Product.asp?c=52&s=8&p=96&i=5899