So do you tend to have working orders in all day? Or only place them when you see an opportunity about to occur? I tried placing a load of working orders into the matrix once, working various boxes manually, but got confused and went to sleep. I much prefer using an autospreader.
Also, what sort of holding periods do you tend to have? I've heard that box traders hold their positions for days, if not weeks. With the equity spread that I trade I try to get out within 5 minutes.