I am looking for a system or platform that will execute my order as soon as my signal generates the condition. I use TradeStation now but it will not generate an order if the signal happens within the bar of the specified interval. For example, on a 5 minute bar interval, if a signal is generated, TS waits till the open of the next bar to send the order. That is too long, I want it send immediately. Anyone know what systems can do this?