Interlaboratory measurement variations as highlighted by the USDA check-tests are discussed and analyzed. Reasons for the differences are identified. A software routine has been devised by Spinlab and tested over an extensive period of time by Ralli Brothers and Coney, Ltd. with very encouraging results. The calibration routine accumulates data over a long period of time to overcome the effects of inherent variability in cotton standards. Implementation by the industry could and should eradicate what has become a topic of scorn by opponents critical of HVI use and implementation.