I've traded in several money up prop firms, and noticed that some firms charge a "Reg NMS fee" of almost $0.003/share when routing to nyse or arca and then some firms don't. and when I say don't, I mean they do charge something, but some small token fee. The firms I traded at that are registered via NASD/FINRA seem to have this huge reg nms fee and firms at CBSX or PHLX don't. anyone else notice this? Seems really high when your exchange fees are twice as much as your broker commission rate.