yes try to save it,, hopefully when you get the weight down and even tiller ,, that area wont be stressed any more... make that part of the tiller a bit stiffer,, just to reduce the stress there a bit more,,I have a friend that fretted his first osage bow, but when he got the tiller even it never got any worse, and is shooting it years later so think positive,, you could always patch it at suggested ,, i have never done that so it is out of my area of expertise,,,but I have saved some bows of a special piece of wood I didnt want to trash,, I am fixing one now that is on its third life,, the wood is from my dads place nearly 30 years ago,,,, I am reducing the weight quite a bit,,,and not going to shoot it that much,,
it has several issues, checks ,,,borer holes,,etc etc,,,