I assume your looking for tips or oppinions, so... The wedge cull used in this thing is very good, certainly worth the time it takes to aquire and master. Few would argue the value in that. In so far as the routine goes, it's sure to impress other card magicians (if done well;) I'm not sure that a lay person would be as impressed. The removing and showing of the aces, having cards selected and returned, really slow down the action. Even the revelation of the reversed aces, showing them one at a time, is slow. For me, it's a hard thing to present entertainingly. I think Jenning's own "The Searchers" (Richard's Almanac - 1984,) Aaron Fisher's "Search and Destroy" (The Paper Engine,) or Roy Walton's "Mission Accomplished" (The Devil's Playthings) are better suited for the purposes of entertaining.
One tip on the wedge cull is to review Marlo's Prayer Cull description in M.I.N.T. While the techniques are quite different, there is some advice in there on timing and culling pairs of cards.