The Table Percentage Bowing Method (5.27)
The Table Percentage Bowing Method can also be effective in table size estimation. With properly cut star facets, a 60% table forms a perfect square. Study the following illustrations to locate the square(s) in the table facet arrangement.
When the lines of the square bow inward, you know the table is smaller than 60% and when the lines bow outward, you know the table is larger than 60%.