Anyone reading Jon's great column in Genii? If so--in the Arpil Genii, Jon has a reference to an effect by Dave Solomon. The end of the effect has a Joker on one side and the signed selection on the other. This prompted me to come up with a solution that matched the detailed description. But in my solution the Joker can't be examined too closely. Jon said Dave has published this effect. Anyone know where it is published?