I have cut a lot of osage trees for bows, between 50 and 100, osage won't check if you handle it properly, the sapwood has to come off if the bark does as it dries quicker than heartwood and is responsible for the checking. The ends must be well sealed also.
Warping can be a problem if you cut a tree that is leaning and prestressed. Dimensional lumber is more stable than split out staves. I have a friend who cuts osage into boards for later making laminations for his fiberglass laminated bows, he seldom has warping problems.
Finding a tree that is clear wood through and through without wind shakes in the core could be a problem, most of what I cut had wind shakes.
These are wind shakes; they emanate from the core like spider webs;
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This log would make good lumber, no wind shakes.
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I got almost all my osage from recovering trees on property that were being removed for land development, I would ask if I could salvage the tree and was never told no, a bulldozer had just pushed this one down.
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I took it home with me.