Deep Guilt Aces by David Regal

This is a visually perfect Spectator-Cuts-to-and-Turns-Over-the-Aces effect. The deck ishandled by spectators during the effect, and indifferent cards are seen throughout, yet the spectator cuts to the four Aces.  This idea was independently developed by Angelo Carbone, and Mark Jenest made earlier contributions in this area as well (both have okayed its sale here).  It's really a devilish thing.