Panzer III addition, to counter enemy anti-tank rifles, starting from 1943, the Ausf. L version began the use of spaced armour sideskirts and screens (known as "Schürzen" in German) around the turret and on the vulnerable hull-sides. However, due to the introduction of the upgunned and more-armoured Panzer IV, the Panzer III was, after the German defeat at the Battle of Kursk in the summer of 1943, relegated to secondary/minor combat roles, such as tank-training, and it was finally replaced as the main German medium tank by the Panzer IV and the Panzer V Panther. The Panzer III's strong, reliable and durable
U Should've Known Better successful on "Billboard"´s component charts. It reached number 6 on the Hot R&B/Hip-Hop Singles & Tracks—Monica's tenth non-consecutive top ten entry on that particular chart—as well as the top ten on the Hot R&B/Hip-Hop Airplay and the top twenty on the Hot 100 Airplay chart. It also appeared on the Rhythmic Top 40 at number 20. The song was ranked 72nd on the Hot R&B/Hip-Hop Singles 2004 year-end chart. The music video for "U Should've Known Better" was shot by director Benny Boom, and produced by Joyce Washington for FM Rocks. It was filmed in various locations throughout Mexico, in