We need a good, accurate 'Boing-ometer', you bend the shaft and let go. How many times it goes 'BOINGGGG" is the flex rating.![]()
When I was building wooden shafts I would bounce the end off of the wood floor. A very solid one inch thick and a bit more plus joists every twelve inches. Five or seven sills in twelve feet too, the floor was solid! Didn't matter how many growth rings a blank had, it didn't mean a thing if it didn't have the ping! Customers usually got 12-15 rings, I was very happy with eight to twelve rings for my personal shafts. Eight rings and a ping beat fifteen rings that didn't sound right.
Hu