Six-Points-to-Four-Quads speeds up the "patch end caps"-process of William Vaughan’s workflow “Modelling text with SubD’s”.
In order to avoid the creation of tiny quads and to create a cleaner polygon flow, William Vaughan suggested a four poly configuration to patch end caps.
Instead of creating this configuration for almost each letter of your text by hand, you can speed up this task by utilizing Six-Points-to-Four-Quads.
Simply select (a multiple of) six points and run the plugin to achieve a four quad configuration for each set of six points.