Off the top of my head, I'm thinking of a cam that has two "valleys" in the draw cycleand the string could be initially drawn to full draw (at the second valley), while a separate ratcheting mechanism takes the slack out of the cables, then, the string is let down, into the first "valley," while the "ratchet" holds the cables in place, keeping the limbs squeezed.

Then, the second draw would squeeze the limbs even further, and upon release, the "ratchet" would unlock somehow (centrifugal force, maybe?), and the limbs would snap back to their original position. So, you'd never be actually letting the draw down completely. You'd instead be doing a full-draw, then letting it halfway down, andcoming back to full-draw again.

Obviously, this would require unconventional thinking w/regard to string/cable setups as well.

Is this total craziness, or does this make sense to anybody else?
Thanks for agreeing with me there, Sylvan, even if you were just jokin' around, it made me feel like I wasn't losing my mind.