Hi Caalador,
About reported error during the calculation of the indicator 'BACKTEST', I have guess something wrong with FXCM Trading Station environment. Please try to reinstall FXCM Trading Station with last available 01.10.010311 version from http://www.fxcm.com/forex-software-download.jsp.
Just reinstalled it’s too (for testing) and no one error for backtesting.
Working with “Volumes” please pay attention, not all currency pairs and timeframes are well profitable. I have best backtesting results with xxx/JPY and D1. (where xxx is USD and EUR)
Applying timeframes below D1 (i.e. H8, H6, H4 and so on) will lead to worse profit, since based Price Stream (Volume) in this case is not well represented (has not enough values).
Thanks a lot for report about ‘Typical selection’ and thanks in advance for your future ‘final results‘.