I haven't sinew backed a bow in Alaska yet. I've used Knox gelatin (purified hide glue) in the past but in a more humid climate. I've been told that Knox gelatin or hide glue will guarantee belly cracks here because of the low humidity. Same fella said to use TiteBond III. I'm sure TiteBond III will hold everything together but Titebond glues tend to creep (slip). If the sinew slips then so does it's performance. Does anybody have a secret method they want to share? Shellac the belly before applying? Only apply one layer and let it dry completely before the second? Wash the bow with water and lye soap and lay the sinew onto wet wood? Skip the water and only clean with acetone?
I know belly cracks won't kill a bow but they're ugly and make it almost impossible to keep moisture out in a wet moose season.