What about Go Futures? 99 cents per contract, better than IB commission rate of $1.81. Not sure of their HSI rate.
I can't believe anybody would trade futures without using a bracketed frontend. ESPECIALLY a volatile instrument like HSI. Booktrader can do brackets too, but you need to program it. Check out BracketTrader. It is free to try (unlimited time), $100 one-time fee to buy. http://www.bracket-trader.com/home.html