I bought an osage board-1 3/4" X5/8" X 72". I also got a 1/8" hickory backing and made this bow a reflex-deflex bow glued with URAC 185. The bow is 64" nock to nock. I wanted to make a 66" but the board had a bad check at one end and I was afraid to take a chance the check would come out when working the ends of the limb. The check in the picture is about 3" from the fades and about 4-5 inches long. I had hoped it would work out when narrowing the limbs but no luck. This is a quarter sawn board which I think has made a faster bow. The grain runs from back to belly so I think this is called quarter sawn. Do you think this bow will survive. The check is filled with super glue. It is 64" -57 lbs. @ 28". Thanks, Don

Honestly, I'd be worried.  It kinda looks like the grain runs out on the belly side there.  I think I'd have to wrap it with something.  But, I've gotten away with murder on osage bows.

that's not a check, it's a CRACK!

I wouldn't trust it.  What is the back glued down with. You might be able to salvage the backing with heat.