I unstring it after shooting, it has not been overdrawn and I store it horizontally on a shelf. So I don't know what caused it, or if it came that way. I never really looked at it closely when braced before, and since it is the lower limb it is not obvious when holding it. It seems to shoot fine, handshock seems minor. The current draw weight is 50# and I don't mind if it drops into the mid-40's.
Will it get worse with shooting? Is there a concern that the bow might fail while shooting?