If you have been following along on bowl.com, the USBC has revoked the use of Motiv Jackal and Jackal Carnage bowling balls. They are no longer permissible to use in any certified competition, either league or tournament. You can check on bowl.com for further information.
Motiv company is addressing the issue and is coming out with a form for exchange. The form should be available Wednesday, March 23 on Motivbowling.com.