Matt,

It is what BJ Park called the wing shape that he is using on the Episode, which others are starting to try on the Nuance. I don't remember what the acronym stands for. I actually have a set to try as soon as it quits raining. You can see the shape in the pictures. The Episode is the best snapping plane I've ever flown, PERIOD. I think you sacrifice some things in other aspects, but the planes snap incredible,

Arch