There is a long-standing practice in the computer aided inspection industry that includes CMMs to report in-tolerance values in green and out-of-tolerance values in red. The red numbers have come to trigger, if not outright alarm, by their mere presence in a report, while green reports are glossed over and forgotten. Just as there are ways to revise a CMM routine or evaluation to change the red reports to green, there are methods to hide bad product under green numbers.