I have recently switched from TOS to IB this past week. I love the customization of everything although it will take some time to get everything lined up the way I like it. I have a question about their level 2. I noticed it is aggregate. I am subscribed to Total View which is in there but then there are some other order books that I am not subscribed. When I removed Total View it does not coincide with TOS level 2 quotes. What does TOS have as far as data compared to IB's level 2. Should I be subscribing to all the order books on IB to see as much information as possible? Thank you. I am continuing to paper trade until I am comfortable with the new platform and broker.