What are X-Outs and Double Stamps? INNOVA X-Outs are discs with minor imperfections that do not meet our quality standards. These discs may be discolored, have specks, bubbles, hot stamp defects or other cosmetic flaws. They still have the same flight characteristics and are legal for use in PDGA tournament play. Double Stamps are normal discs that carry two or more hot stamp images due to errors in the hot stamping process.