Frindall was also known for producing scoring charts for many of his tours with England. He modified the linear scoring system invented by John Atkinson Pendlington and developed by Australian scorer Bill Ferguson into a version that is known as the Frindall system. Frindall met Ferguson in 1953, when he was 14 years old. The concentration needed to maintain such consistently high-quality work was immense, and Frindall believed it was his time in the RAF that prepared him for the task. Writing honed by his training to be an architect meant that each page was beautifully laid out and easy to read. Every scorecard, like the wagon-wheels he produced to show where a batsman scored his runs after playing a significant innings, was a work of art. Frindall's work was so meticulously accurate that the commentators would habitually trust his figures if they differed from the official scoreboard.