If your stock is splitting along the lamination lines you may have a much larger problem than just gluing the first crack. A properly laminated stock should in general be impossible to crack along the lamination lines, depending on where the crack is located. Would need more info to know whether you have a bigger problem.
If you can't fix this one yourself, I would price out a replacement Boyds stock, in all likelyhood it will be close to the same price as a professional fix. For this kind of fix Bob Galloway or Rod Henrickson would be good options.
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