Based on what you have been trading, you'd pay $85 in data fees per month if you go live with them. That's because you get put in the professional trader category when trading for a prop firm. It is definitely something to consider, but if you trade like you did in the combine, it shouldn't be much of an issue. I like trading a wide variety of instruments, so it would be more of an issue to me because of the scaling plan that they have which limits how many contracts you can have on at once.