I have some hackberry that I cut last March that has some discoloration. I cut them, split them, and put them up to dry in my shop the same day. They have never been exposed to any moisture at all, and all were normal colored when they were split. A handful of the staves got a discoloration from end to end on the staves. I don’t believe this is fungal or anything like that. I’ve made two bows out of staves with this discoloration with no ill effect.
All that said, my trade bow stave has this and I was working on it today and got worried there may be something wrong with the wood. If that’s the case, I sure won’t be sending it off to anyone else. I have plenty of staves that don’t have the discoloration, but this is a pretty nice stave. Any opinions on this?