When I think of "high energy" I think of something I would call early on when the dancers aren't tired, and a dance for which I would request a fast tune, probably an unforgiving dance with timing such that you barely make it from one move to the next, where everyone is moving all the time, like a good contra corners dance when active. I think this is a good topic, related to assessing the energy requirements of a dance and the agility of the dancers. Whirligiggin' Around, by Cis Hinkle, is pretty busy and crazy, but really fun with good dancers. I once called it later on at an all night dance thinking that brain-dead dancers could handle it, but I didn't think about them also being body-dead! Their facial expressions said it all. I'm just glad no-one was injured! Jill Whirligiggin' Around Cis Hinkle duple, improper A1 circle L 1/4, R and L through across (8)* circle L 1/4, R and L through up and down (8) A2 repeat A 1 from new positions B1 DSD N, swing N B2 long lines, ones swing * R and L through with no hands works best