Update: On Aug. 9, 2016, USBC announced in this news release that it denied MOTIV's appeal of its decision&nbsp;to revoke USBC approval of the JACKAL and JACKAL CARNAGE balls.
MOTIV the next day posted this on its Facebook page:"MOTIV is reviewing the USBC&rsquo;s decision to not reinstate approval of the Jackal and Jackal Carnage bowling balls, and is considering its options going forward. Nevertheless, MOTIV is pleased to announce that the new Jackal LE (Limited Edition) has been approved...

A scientific and mathematical analysis using manufacturing standard deviation and the numbers released by MOTIV after the USBC banned the company’s JACKAL and JACKAL CARNAGE balls shows that it’s probable that more than half exceeded the maximum 0.060 differential in USBC rules.

Analysis shows likely more than half of banned MOTIV balls exceeded USBC differential standard