CTA's experiences using introducing brokers. If you are a CTA and if you have used (or approached by) introducing brokers, please share some of your (positive or negative) experiences. I am an emerging CTA and currently use Interactive Brokers as client FCM and executing FCM. I also use their auto billing features. So, billing is done automatically. I was approached by one introducing broker who would like to introduce me a client (a fund), but they want me to use other FCM as client and executing FCM. I am in the process to evaluate how much change (pros and cons) to my on going operations in billing and handle withdraws and additions, etc, if I do change to use other FCM as required by Introducing Broker. Please share your experiences.