I cut a hackberry tree down on the edge of my yard last summer. Sealed the ends, split it into staves, peeled the bark off, and laid them out on my picnic table in the shade to dry. The next DAY, the staves had started to develop checks and were crawling with tiny, tiny long black woodborers that were already starting to eat holes. By week's ends the staves were riddled with borer holes and checks so badly, they resembled crevassed glaciers. So I can't tell you how hackberry works for bow wood, but I can tell ya it burns well in a woodstove...
Anyone else experience anything like this? Do you have to seal the back like with osage?