The No Mercy Beat'n features the same HART concept core found in the original No Mercy combined with the new Violent Hook Reactive coverstock to produce excellent all purpose ball motion. Compared to the original No Mercy, the No Mercy Beat'n will provide more length, more aggressive backend reaction, and more total hook.What is an X OutAn X Out is the same ball with color pattern issues. Balls look great though. An X Out has the followingSame coreSame reactionSame coverstockSame warrantyIT IS ALSO USBC APPROVEDA Hammer product can classify as an X Out for any of the following reasonsUnique PinCG Placement, Top Weight, and Mass Bias LocationSmall Pitting in the CoverstockDiscolorationAll Hammer X Outs come with the same manufacturers warranty as first quality balls. NOTE Due to the limited availability of Blems, X Outs, and Seconds pin placement and top weight are not guaranteed.Product Type Bowling Balls