I have sinew backed several honey locust bows,the wood is white as it can be and light but is surprisingly good in compression strength. I have heat treated the belly and left some plain and couldn't see a difference in either. Now the bows I made were short 50" or less. I haven't tried a long bow from it but plan too as I harvest several logs last year. Give it a try, I might suggest a 1.5" wide mid limb tapering to 1/2" tips, that's a safe design.
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