What do you guys think about routing orders near the open. For example, a stock is trading at 9:31 with a very wide spread, just a few trades going off, and I place a buy limit just inside the bid, or maybe a little below it, looking for a "lucky" fill. Right now I just route to BATS. Over the long run, it seems to work better than Nasdaq. Do you think it would be worth the effort to collect Level II data and do a smart route? So if the inside bid was on ARCA, post to ARCA .... or does regulation NMS make this kind of a moot point? Maybe I can just route NYSE stocks to ARCA, Nasdaq to BATS?