In 1988 a friend of mine had a Hobie 16. His fron X-bar also had small cracks in it near the dolphin striker. In 2000 during a race, the front x-bar folded during a race going to the weather mark. No one was injured and he found a new x-bar for $150.

For $150-300, I think it is worth your time to buy a new one when compared to what could happen.