This article, written by Assistant Technology Editor Karen Bybee, contains highlights of paper SPE 84137, "New Approach for Modeling Progressive- Cavity-Pumps Performance," by Jose Gamboa and Aurelio Olivet, GD Solutions C.A., and Sorelys Espin, SPE, U. Simon Bolivar, prepared for the 2003 SPE Annual Technical Conference and Exhibition, Denver, 5-8 October.