Paul A. Funk, USDA-ARS-Southwestern Cotton Ginning Research Laboratory, Mesilla Park, NM, S. E. Hughs, Southwest Cotton Ginning Lab, USDA-ARS, Mesilla Park, NM, Bobby Hardin, Cotton Ginning Laboratory - Stoneville, Stoneville, MS and J. Clif Boykin, USDA-ARS Cotton Ginning Research Unit, Stoneville, MS