I am starting OCT 1 with one of the big name PROP firms and about to take the series 57. I am also in a program trading internship with another smaller outfit and once my work is approved I will need to join the firm that bankrolls their operation (which is a big name wall street firm, not even a prop shop). my question has only to do with the rules and regulations. I know of people who hand trade + program trade as their business model but all of them do this with the same firm. In terms of SEC regulations, is this viable? Can you only trade with the firm that sponsored you? Can you only trade with one firm? Feel free to talk as if I know nothing because on the rules and regulations side this is nearly true. Any other problems or suggestions I may run into would be helpful. Thank you.