I've been round the ringer with this on Facebook for days and got nowhere, so hoping someone here can help!
I have a batch of English yew that so far has broken 4 times in a row, and every time the stave has done this before exploding.
This is a dead straight, well seasoned stave that in the photo is pulling to brace height. The arrows show where its bending, and I can't for the life of me work out why, or what the solution is.
![](http://i1202.photobucket.com/albums/bb363/Will_Sherman/Mobile%20Uploads/IMG_20160204_140015_zpst3ervgip.jpg)
Thoughts, opinions and ideas needed before I break five in a row!