Good question...I will give you my read, and we'll see what Gene has to say (since this is his thread)....The training of MM's is geared toward making money for the Firm from order flow. There have been many articles in the WSJ and Barrons about the abuse of customers by MM's. Actual trading is a whole different thing...MM's can lean on orders, traders have to enter and exit with only the information available via tape reading and morket conditons.
I like to see a person with an open mind, no pre-conceived ideas, and very little (if any)tendancies towards "over analysis." Learn how to come in cold, read the market, start the game.
Anyway, I like to see dedication from a younger trader...and discipline, we can teach the rest.