I found many advantages with Investor RT. Much easier to backtest, as there is little or no programming involved. You construct backtesting rules based on existing tokens that represent indicators, then adjust to your liking with menus. Extremely flexible, as you can control every variable quickly. Also, a lot more versatile for trading. You can build quote pages with numerous custom columns, much like MS Excel, and have each signal with alerts based on realtime data. Can couple the quote pages with charts, displaying any number of indicators in whatever style you want. Very fast backtesting. 3 years on 500 stocks in about 10 seconds, as the data is stored on your drive. Also superb customer service. All in all, a very deep and super flexible system.