This my take on a table saw feather board.

The feather board has rounded corners on the fingers to help reduce stress concentration and give an overall softer feel to the feather board. I also added my logo to the feather board, but the included STL is blank.

The miter slot bars are sized to fit my 3/4" miter slot width and depth and a 5/16" flat head bolt.

The knobs are sized to fit a 5/16" nut.