No ofense, but selling the product you sell here, your opinion will always be biased in this matter, since you need people to believe that these "traders" actually know how to trade, so that they can believe also that that can be taught(and that someone who knows what he is doing is willing to teach).Nearly all of the proprietary futures trading firms that I'm familiar with are run by principals who for the most part are somewhat legendary in their trading prowess. The equity prop business model I understand to be vastly different though - I have no experiences in that regard.
I'm not giving my opinion on the matter, I'm just making an objective, imparcial observation.