Was wondering if any listed traders use IB's Smart order routing for their trading. And if they do, then why? If they don't then why not? Some guy on IB's Yahoo user group says he does. And he says the orders can be filled by Arca, Instinet, Island and TMBR. I always thought TMBR was for nasdaq orders, not listed... In fact, this guy "always" routes to Smart. He says otherwise he is at the "mercy" of the NYSE.