Quote from Rhody Trader:
I traded spot through IB for a little while and found it to be a pain. Maybe it's gotten better since.
If you're planning trading futures through IB, why not just use those prices? If you use spot you would have to do everything in reverse for USD/JPY since the futures are quoted the opposite way around from spot.
the main problem is that i use tick charts. futures have less ticks then spot and the bars take longer to form and i get in later. i hate time based charts. thats my real dilemma i get better looking charts with spot charts due to a higher tick count but i get the headache of having to deal with spot fx brokers. thats the main reason i want to know if using spot charts are good enough to trade futures.