I'm not sure if it has already been mentioned but as I understand the rules the Flexible quality should reduce armor impediment by 2 (0 for Light, -1 for med, and -2 for heavy). I have a 10 Quick and Woven Silk which is flexible but my Quick displayed under Defense is 8 instead of 10 like it should be. Mousing over the score shows the -2 Impeding but no mod for Flexible.