Built for coverage and comfort

but how does a modern cook approach it

This fin is intended to be used in Joel's line of egg shapes

flowing lines on longer midlength boards

Bonzer 6.5" - Clear size-8 Built for coverage and comfortThis fin was designed by the Campbell brothers to specifically pair with their Bonzer surfboards in order to complement the unique bottom contours and fin setups of their 3 and 5 fin designs. The Bonzer center fin works synergistically with the additional runners to efficiently organize water flow across the bottom of the surfboard, resulting in a highly optimal transfer of energy. If you have a Bonzer board, then this fin is the official prescription