Kazin:I would never try to buy at open..usually at least 30minutes after..And I have never had any luck with aon..I would think it would probably gap at open and then the shake and back down before the next run of the day..Just my opinion.Best of luck to ya..I have not used aon on this stock..and hardly ever had partial fills since I have started buying in..And the ones I have had..all fill within seconds..