For those of you who have been using Hold Brothers's Graybox for a while, I'm trying to get an idea of how well the specialized order entry functions work (eg Smart Order, Blasting, SuperECN, etc.) In general, here is what I'll be attempting to do. Let's say there are sufficient shares offered within the price I'm willing to pay, but they're spread out among various ECNs. I just want to hit one button and have it grab as many shares as I need, regardless of whether it has to split the order among different ECNs. From reading the manual, it looks like I need the Smart Order route. In the above situation, am I going to get an immediate execution? Or is it going to look at ISLD, sit there for 10 seconds if the order doesn't fill completely, then look at INCA for 10 seconds, then 10 seconds at REDI...? The manual doesn't specify whether it uses Selectnet, or whether it looks at all ECNs continually, or only one at a time.