I am day-trading ES and use Mirus as my broker. I am using Ninja Trader connected to Zenfire. At my current trading volume (around 500 RT per month), my commission is 4.48 RT from Mirus. Recently I got some promotional emails from AMP future trading. They offer Ninja with TT date feed for 3.80 ES round trip commission. I talked to them on phone. And they claim the TT date feed is as good as Zenfire. Does anyone know if TT is as fast/stable as Zenfire? The 3.80 RT commission rate looks really good if TT as good as they claimed. Thanks.