Since my "style" of Aikido is from Larry Reynosa (former student of Steven Seagal), then I guess I'm of the Sith variety. You may now address me as Darth Dewey!
I'm not sure what to make of Ki. Speaking to my experience thus far, I'd regard it as twofold. One, I consider it as heiho (martial strategy). Second, I'd consider it biomechanical electricity and applied leverage.