In 1940 Slingerland decided to go back to the drawing board and create a new Radio King snare drum model. This model would become known as the “New Super Gene Krupa Model” with a unique and innovative strainer system which became known as the "clam shell" strainer. Unlike the Gene Krupa 6.5” x 14” model with the three point strainer and eight center streamline lugs, this new Radio King snare had been drastically redesigned.