Press Annoucement from Goldtip about knocks Please read
 

We at Gold Tip are aware of issues with our nocks. While the overall reported rate of failure is less than one in a thousand, any level of failure is not acceptable to Gold Tip. We have identified the root cause of the failures as a material issue. As a result, we have initiated a change in material specifications with our nock suppliers. If you have experienced any Gold Tip nock breakage or have any doubts about your existing nocks for any reason please return those nocks for immediate replacement. We will pay for all shipping and replacement of your nocks at no charge. For more information, please contact us by email at [email protected] or by phone at 801-229-1666, or 800-551-0541 between 7:30 am and 4:30 pm MT.

Sounds like they're trying to make it right.