That's interesting goodgoing !
Ive used TS 2000i for few years and made consistent money, my reason to stay with it when in reality there is probably far superior software available and more user friendly and cheaper is why change a winning strategy and part of that is TS 2000i, im used to it, comfortable with it and don't want to change.
Maybe some of these problems with backtesting come down to quality of data, i use (third party) CSI and have no major issues.
Whats good for one person is crap to another i suppose.