I want to let the broker to trade my systems. I need fair commission rates, access to Eurex and good quality service, of course... Which one of these brokers is the best in your experience? 1) Striker Securities 2) VanKar Trading 3) Zap Futures 4) Robbins Trading 5) Lind Waldock 6) other? last 2 are expensive, robbins $55 r/t uuhh!