If it were me, I would do both b and c but not b until c. I would want to send it back. (Call first to see if its in the cards.) BUT, I wouldn't want to not be able to shoot, so I would replace it and then send it back. I plan to own more bows and more bows mean more sights so ya might have two for now but, think about when you get that new one in a year or two and you can put the repaired CJ on the Ross and the replacement on the new one. (bowtech)