Ever feel that you're executions were being bettered by the head trader at your office? Ever feel that somehow, your expected outcome was being spoiled by another trader that either capped your gain or shorted ahead of your order flow (not once, but consistently)? Selling order flow is a term that suggests that the netted trades are steered to an ECN that provides soft dollar kick backs, however, it also has another connotation, where in the netted orders are observed on a supervisory level and traded against. Ever wonder about those two scenarios or have comments on these? I've heard rumoring about these events, which almost can not be proved, but have been suspected as occurring quite frequently.