Oh of course if you are capitalized to trade 100 lots in /ES or 10-25 in /CL then it's not for you. I'm planning on opening a new NT Brokerage account very soon to trade 10 lots in /CL. I'd love to be one of those /ES guys scalping 100-200 lots for couple points a day or an average year's salary every day.
Sure, who wouldn't? I am starting out so it works ok, but surely they must have trouble retaining traders in the long term. They don't add any funds. The profit share improves, but they can't give 100%.