Bob,
Mr. Eppler made many airfoils, not just one. Anything you see with an E in front is one of these. Examples are E197, E168, E226, E211, E230, E214. Each does a specific task better then the others. It's a lot of fun to pick the one you think works best for the application you have.

Did you buy a Delta Fighter 90? If you have only half as much fun as I have it will be money well spent.