I would be suspicous of all systems. Some perform better in certain market conditions than others. But if it's working why not stick with it. What software are you using to execute your trades?
Does anyone know what happened with this deal? I was told that PMB is no longer offering JTrader at the same rate. Does anyone know the new pricing structure?
I have been trading with eFloorTrade for a while. Even though their prices are a little higher, the service I have received has made it worth it. I have not been able to compare to eLocal though.