Markingspeedandaccuracyis the mostimportantindicators of galvanometer-basedmarkingsystems. Graphics and imagesare the most important contentoflasermarking systems.
That tactic, in which players ceaselessly switched positions, creating new passing angles that allowed them to circulate the ball at exhilarating speed, was devastating in the 1970s, when almost every team used man-to-man marking.